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Adult Hodgkin Lymphoma Treatment (PDQ®)     
Last Modified: 08/26/2008
Patient Version
Table of Contents

General Information About Adult Hodgkin Lymphoma
Stages of Adult Hodgkin Lymphoma
Recurrent Adult Hodgkin Lymphoma
Treatment Option Overview
Treatment Options for Adult Hodgkin Lymphoma
Early Favorable Hodgkin Lymphoma
Early Unfavorable Hodgkin Lymphoma
Advanced Favorable Hodgkin Lymphoma
Advanced Unfavorable Hodgkin Lymphoma
Hodgkin Lymphoma During Pregnancy
        Hodgkin Lymphoma During the First Trimester of Pregnancy
        Hodgkin Lymphoma During the Second Half of Pregnancy
Recurrent Adult Hodgkin Lymphoma
To Learn More About Adult Hodgkin Lymphoma
Get More Information From NCI
Changes to This Summary (08/26/2008)
About PDQ

General Information About Adult Hodgkin Lymphoma

Key Points for This Section


Adult Hodgkin lymphoma is a disease in which malignant (cancer) cells form in the lymph system.

Adult Hodgkin lymphoma is a type of cancer that develops in the lymph system, part of the body's immune system.

The lymph system is made up of the following:

  • Lymph: Colorless, watery fluid that travels through the lymph system and carries white blood cells called lymphocytes. Lymphocytes protect the body against infections and the growth of tumors.
  • Lymph vessels: A network of thin tubes that collect lymph from different parts of the body and return it to the bloodstream.
  • Lymph nodes: Small, bean-shaped structures that filter lymph and store white blood cells that help fight infection and disease. Lymph nodes are located along the network of lymph vessels found throughout the body. Clusters of lymph nodes are found in the underarm, pelvis, neck, abdomen, and groin.
  • Spleen: An organ that makes lymphocytes, filters the blood, stores blood cells, and destroys old blood cells. It is located on the left side of the abdomen near the stomach.
  • Thymus: An organ in which lymphocytes grow and multiply. The thymus is in the chest behind the breastbone.
  • Tonsils: Two small masses of lymph tissue at the back of the throat. The tonsils produce lymphocytes.
  • Bone marrow: The soft, spongy tissue in the center of large bones. Bone marrow produces white blood cells, red blood cells, and platelets.

Enlarge
Anatomy of the lymph system, showing the lymph vessels and lymph organs including lymph nodes, tonsils, thymus, spleen, and bone marrow. Lymph (clear fluid) and lymphocytes travel through the lymph vessels and into the lymph nodes where the lymphocytes destroy harmful substances. The lymph enters the blood through a large vein near the heart.

Because lymph tissue is found throughout the body, Hodgkin lymphoma can begin in almost any part of the body and spread to almost any tissue or organ in the body.

Lymphomas are divided into two general types: Hodgkin lymphoma and non-Hodgkin lymphoma. This summary is about the treatment of adult Hodgkin lymphoma. (See the PDQ summary on Adult Non-Hodgkin Lymphoma Treatment 1 for more information.)

Hodgkin lymphoma can occur in both adults and children; however, treatment for adults may be different than treatment for children. Hodgkin lymphoma may also occur in patients who have acquired immunodeficiency syndrome (AIDS); these patients require special treatment.

See the following PDQ summaries for more information:

Hodgkin lymphoma in pregnant women is the same as the disease in nonpregnant women of childbearing age. However, treatment is different for pregnant women. This summary includes information about treating Hodgkin lymphoma during pregnancy.

There are two main types of Hodgkin lymphoma: classical and nodular lymphocyte-predominant.

Most Hodgkin lymphomas are the classical type. The classical type is broken down into the following four subtypes:

  • Nodular sclerosing Hodgkin lymphoma.
  • Mixed cellularity Hodgkin lymphoma.
  • Lymphocyte depletion Hodgkin lymphoma.
  • Lymphocyte-rich classical Hodgkin lymphoma.

Age, gender, and Epstein-Barr infection can affect the risk of developing adult Hodgkin lymphoma.

Anything that increases your risk of getting a disease is called a risk factor. Having a risk factor does not mean that you will get cancer; not having risk factors doesn't mean that you will not get cancer. People who think they may be at risk should discuss this with their doctor. Risk factors for adult Hodgkin lymphoma include the following:

  • Being in young or late adulthood.
  • Being male.
  • Being infected with the Epstein-Barr virus.
  • Having a first-degree relative (parent, brother, or sister) with Hodgkin lymphoma.

Pregnancy is not a risk factor for Hodgkin lymphoma.

Possible signs of adult Hodgkin lymphoma include swollen lymph nodes, fever, night sweats, and weight loss.

These and other symptoms may be caused by adult Hodgkin lymphoma. Other conditions may cause the same symptoms. A doctor should be consulted if any of the following problems do not go away:

  • Painless, swollen lymph nodes in the neck, underarm, or groin.
  • Fever for no known reason.
  • Drenching night sweats.
  • Weight loss for no known reason.
  • Itchy skin.
  • Feeling very tired.

Tests that examine the lymph nodes are used to detect (find) and diagnose adult Hodgkin lymphoma.

The following tests and procedures may be used:

  • Physical exam and history: An exam of the body to check general signs of health, including checking for signs of disease, such as lumps or anything else that seems unusual. A history of the patient's past illnesses and treatments will also be taken.
  • Complete blood count (CBC): A procedure in which a sample of blood is drawn and checked for the following:
    • The number of red blood cells, white blood cells, and platelets.
    • The amount of hemoglobin (the protein that carries oxygen) in the red blood cells.
    • The portion of the sample made up of red blood cells.

    Enlarge
    Complete blood count (CBC); left panel shows blood being drawn from a vein on the inside of the elbow using a tube attached to a syringe; right panel shows a laboratory test tube with blood cells separated into layers: plasma, white blood cells, platelets, and red blood cells.
    Complete blood count (CBC). Blood is collected by inserting a needle into a vein and allowing the blood to flow into a tube. The blood sample is sent to the laboratory and the red blood cells, white blood cells, and platelets are counted. The CBC is used to test for, diagnose, and monitor many different conditions.

  • Sedimentation rate: A procedure in which a sample of blood is drawn and checked for the rate at which the red blood cells settle to the bottom of the test tube.
  • Blood chemistry studies: A procedure in which a blood sample is checked to measure the amounts of certain substances released into the blood by organs and tissues in the body. An unusual (higher or lower than normal) amount of a substance can be a sign of disease in the organ or tissue that makes it.
  • Lymph node biopsy: The removal of all or part of a lymph node. One of the following types of biopsies may be done:

    A pathologist views the tissue under a microscope to look for cancer cells, especially Reed-Sternberg cells. Reed-Sternberg cells are common in classical Hodgkin lymphoma.

    Enlarge
    Reed-Sternberg cell; photograph shows normal lymphocytes compared with a Reed-Sternberg cell.
    Reed-Sternberg cell. Reed-Sternberg cells are large, abnormal lymphocytes that may contain more than one nucleus. These cells are found in Hodgkin lymphoma.

  • Immunophenotyping: A test in which the cells in a sample of blood or bone marrow are looked at under a microscope to find out if malignant lymphocytes (cancer) began from the B lymphocytes or the T lymphocytes.

Certain factors affect prognosis (chance of recovery) and treatment options.

The prognosis (chance of recovery) and treatment options depend on the following:

  • The patient's symptoms.
  • The stage of the cancer.
  • The type of Hodgkin lymphoma.
  • Blood test results.
  • The patient's age, gender, and general health.
  • Whether the cancer is recurrent or progressive.

For Hodgkin lymphoma during pregnancy, treatment options also depend on:

  • The wishes of the patient.
  • The age of the fetus.

Adult Hodgkin lymphoma can usually be cured if found and treated early.

Stages of Adult Hodgkin Lymphoma

Key Points for This Section


After adult Hodgkin lymphoma has been diagnosed, tests are done to find out if cancer cells have spread within the lymph system or to other parts of the body.

The process used to find out if cancer has spread within the lymph system or to other parts of the body is called staging. The information gathered from the staging process determines the stage of the disease. It is important to know the stage in order to plan treatment. The following tests and procedures may be used in the staging process:

  • CT scan (CAT scan): A procedure that makes a series of detailed pictures of areas inside the body, taken from different angles. The pictures are made by a computer linked to an x-ray machine. A dye may be injected into a vein or swallowed to help the organs or tissues show up more clearly. This procedure is also called computed tomography, computerized tomography, or computerized axial tomography. For adult Hodgkin lymphoma, CT scans of the chest, abdomen, and pelvis are taken.
  • PET scan (positron emission tomography scan): A procedure to find malignant tumor cells in the body. A small amount of radioactive glucose (sugar) is injected into a vein. The PET scanner rotates around the body and makes a picture of where glucose is being used in the body. Malignant tumor cells show up brighter in the picture because they are more active and take up more glucose than normal cells do.
  • Bone marrow aspiration and biopsy: The removal of bone marrow, blood, and a small piece of bone by inserting a hollow needle into the hipbone or breastbone. A pathologist views the bone marrow, blood, and bone under a microscope to look for signs of cancer.

    Enlarge
    Bone marrow aspiration and biopsy; drawing shows a patient lying face down on a table and a Jamshidi needle (a long, hollow needle) being inserted into the hip bone. Inset shows the Jamshidi needle being inserted through the skin into the bone marrow of the hip bone.
    Bone marrow aspiration and biopsy. After a small area of skin is numbed, a Jamshidi needle (a long, hollow needle) is inserted into the patient’s hip bone. Samples of blood, bone, and bone marrow are removed for examination under a microscope.

  • Laparotomy: A surgical procedure in which an incision (cut) is made in the wall of the abdomen to check the inside of the abdomen for signs of disease. The size of the incision depends on the reason the laparotomy is being done. Sometimes organs are removed or tissue samples are taken and checked under a microscope for signs of disease. This procedure is done only if it is needed to make decisions about treatment.
  • Chest x-ray: An x-ray of the organs and bones inside the chest. An x-ray is a type of energy beam that can go through the body and onto film, making a picture of areas inside the body.
  • Surgical biopsy: The removal of tissue using a scalpel. A pathologist views the tissue under a microscope to look for cancer cells.
  • Thoracentesis: The removal of fluid from the space between the lining of the chest and the lung, using a needle. A pathologist views the fluid under a microscope to look for cancer cells.

For pregnant women with Hodgkin lymphoma, staging tests that protect the fetus from the harms of radiation are used. These include:

  • MRI (magnetic resonance imaging): A procedure that uses a magnet, radio waves, and a computer to make a series of detailed pictures of areas inside the body. This procedure is also called nuclear magnetic resonance imaging (NMRI).
  • Ultrasound exam: A procedure in which high-energy sound waves (ultrasound) are bounced off internal tissues or organs and make echoes. The echoes form a picture of body tissues called a sonogram.

There are three ways that cancer spreads in the body.

The three ways that cancer spreads in the body are:

  • Through tissue. Cancer invades the surrounding normal tissue.
  • Through the lymph system. Cancer invades the lymph system and travels through the lymph vessels to other places in the body.
  • Through the blood. Cancer invades the veins and capillaries and travels through the blood to other places in the body.

When cancer cells break away from the primary (original) tumor and travel through the lymph or blood to other places in the body, another (secondary) tumor may form. This process is called metastasis. The secondary (metastatic) tumor is the same type of cancer as the primary tumor. For example, if breast cancer spreads to the bones, the cancer cells in the bones are actually breast cancer cells. The disease is metastatic breast cancer, not bone cancer.

Stages of adult Hodgkin lymphoma may include A, B, E, and S.

Adult Hodgkin lymphoma may be described as follows:

  • A: The patient has no symptoms.
  • B: The patient has symptoms such as fever, weight loss, or night sweats.
  • E: "E" stands for extranodal and means the cancer is found in an area or organ other than the lymph nodes or has spread to tissues beyond, but near, the major lymphatic areas.
  • S: "S" stands for spleen and means the cancer is found in the spleen.

The following stages are used for adult Hodgkin lymphoma:

Stage I

Stage I is divided into stage I and stage IE.

Stage II

Stage II is divided into stage II and stage IIE.

Stage III

Stage III is divided into stage III, stage IIIE, Stage IIIS, and stage IIIS+E.

Stage III is also divided into stage III(1) and stage III(2) as follows:

Stage IV

In stage IV, the cancer either:

  • is found throughout one or more organs other than the lymph nodes and may be in lymph nodes near those organs; or
  • is found in one organ other than the lymph nodes and has spread to lymph nodes far away from that organ.

Adult Hodgkin lymphoma may be grouped for treatment as follows:

Early Favorable

Early favorable adult Hodgkin lymphoma is stage I or stage II, without risk factors.

Early Unfavorable

Early unfavorable adult Hodgkin lymphoma is stage I or stage II with one or more of the following risk factors:

Advanced Favorable

Advanced favorable adult Hodgkin lymphoma is stage III or stage IV with three or fewer of the following risk factors:

  • Being male.
  • Being aged 45 years or older.
  • Having stage IV disease.
  • Having a low blood albumin (protein) level (below 4).
  • Having a low hemoglobin level (below 10.5).
  • Having a high white blood cell count (15,000 or higher).
  • Having a low lymphocyte count (below 600 or less than 8% of the white blood cell count).

Advanced Unfavorable

Advanced unfavorable Hodgkin lymphoma is stage III or stage IV with four or more of the following risk factors:

  • Being male.
  • Being aged 45 years or older.
  • Having stage IV disease.
  • Having a low blood albumin (protein) level (below 4).
  • Having a low hemoglobin level (below 10.5).
  • Having a high white blood cell count (15,000 or higher).
  • Having a low lymphocyte count (below 600 or less than 8% of the white blood cell count).

Recurrent Adult Hodgkin Lymphoma

Recurrent adult Hodgkin lymphoma is cancer that has recurred (come back) after it has been treated. The cancer may come back in the lymph system or in other parts of the body.

Treatment Option Overview

Key Points for This Section


There are different types of treatment for patients with adult Hodgkin lymphoma.

Different types of treatment are available for patients with adult Hodgkin lymphoma. Some treatments are standard (the currently used treatment), and some are being tested in clinical trials. A treatment clinical trial is a research study meant to help improve current treatments or obtain information on new treatments for patients with cancer. When clinical trials show that a new treatment is better than the standard treatment, the new treatment may become the standard treatment. Patients may want to think about taking part in a clinical trial. Some clinical trials are open only to patients who have not started treatment.

For pregnant patients with Hodgkin lymphoma, treatment is carefully chosen to protect the fetus. Treatment decisions are based on the mother’s wishes, the stage of the Hodgkin lymphoma, and the age of the fetus. The treatment plan may change as the symptoms, cancer, and pregnancy change. Choosing the most appropriate cancer treatment is a decision that ideally involves the patient, family, and health care team.

Patients with Hodgkin lymphoma should have their treatment planned by a team of health care providers with expertise in treating lymphomas.

Treatment will be overseen by a medical oncologist, a doctor who specializes in treating cancer. The medical oncologist may refer you to other health care providers who have experience and expertise in treating adult Hodgkin lymphoma and who specialize in certain areas of medicine. These may include the following specialists:

Patients may develop late effects that appear months or years after their treatment for Hodgkin lymphoma.

Treatment with chemotherapy and/or radiation therapy for Hodgkin lymphoma may increase the risk of second cancers and other health problems for many months or years after treatment. These late effects depend on the type of treatment and the patient's age when treated, and may include:

Regular follow-up by doctors who are expert in finding and treating late effects is important for the long-term health of patients treated for Hodgkin lymphoma.

Three types of standard treatment are used:

Chemotherapy

Chemotherapy is a cancer treatment that uses drugs to stop the growth of cancer cells, either by killing the cells or by stopping them from dividing. When chemotherapy is taken by mouth or injected into a vein or muscle, the drugs enter the bloodstream and can reach cancer cells throughout the body (systemic chemotherapy). When chemotherapy is placed directly into the spinal column, an organ, or a body cavity such as the abdomen, the drugs mainly affect cancer cells in those areas (regional chemotherapy). The way the chemotherapy is given depends on the type and stage of the cancer being treated. Combination chemotherapy is treatment with more than one anticancer drug.

When a pregnant woman is treated with chemotherapy for Hodgkin lymphoma, it isn't possible to protect the fetus from being exposed to the chemotherapy. Some chemotherapy regimens may cause birth defects if given in the first trimester. Vinblastine is an anticancer drug that has not been linked with birth defects when given in the second half of pregnancy.

Radiation therapy

Radiation therapy is a cancer treatment that uses high-energy x-rays or other types of radiation to kill cancer cells or keep them from growing. There are two types of radiation therapy. External radiation therapy uses a machine outside the body to send radiation toward the cancer. Internal radiation therapy uses a radioactive substance sealed in needles, seeds, wires, or catheters that are placed directly into or near the cancer. The way the radiation therapy is given depends on the type and stage of the cancer being treated.

For pregnant patients with Hodgkin lymphoma, radiation therapy should be postponed until after delivery, if possible, to avoid any risk to the fetus. If immediate treatment is needed, patients may decide to continue the pregnancy and receive radiation therapy. However, lead used to shield the fetus may not protect it from scattered radiation that could possibly cause cancer in the future.

Surgery

Laparotomy is a procedure in which an incision (cut) is made in the wall of the abdomen to check the inside of the abdomen for signs of disease. The size of the incision depends on the reason the laparotomy is being done. Sometimes organs are removed or tissue samples are taken and checked under a microscope for signs of disease. If cancer is found, the tissue or organ is removed during the laparotomy.

For pregnant patients with Hodgkin lymphoma, treatment options also include:

Watchful waiting

Watchful waiting is closely monitoring a patient’s condition without giving any treatment unless symptoms appear or change. Delivery may be induced when the fetus is 32 to 36 weeks old, so that the mother can begin treatment.

Steroid therapy

Steroids are hormones naturally produced in the body by the adrenal glands and by reproductive organs. Some types of steroids are made in a laboratory. Certain steroid drugs have been found to help chemotherapy work better and help stop the growth of cancer cells. Steroids can also help the lungs of the fetus develop faster than normal. This is important when delivery is induced early.

New types of treatment are being tested in clinical trials.

This summary section describes treatments that are being studied in clinical trials. It may not mention every new treatment being studied. Information about clinical trials is available from the NCI Web site 4.

High-dose chemotherapy and radiation therapy with stem cell transplant

High-dose chemotherapy and radiation therapy with stem cell transplant is a way of giving high doses of chemotherapy and radiation therapy and replacing blood -forming cells destroyed by the cancer treatment. Stem cells (immature blood cells) are removed from the blood or bone marrow of the patient or a donor and are frozen and stored. After therapy is completed, the stored stem cells are thawed and given back to the patient through an infusion. These reinfused stem cells grow into (and restore) the body's blood cells.

Patients may want to think about taking part in a clinical trial.

For some patients, taking part in a clinical trial may be the best treatment choice. Clinical trials are part of the cancer research process. Clinical trials are done to find out if new cancer treatments are safe and effective or better than the standard treatment.

Many of today's standard treatments for cancer are based on earlier clinical trials. Patients who take part in a clinical trial may receive the standard treatment or be among the first to receive a new treatment.

Patients who take part in clinical trials also help improve the way cancer will be treated in the future. Even when clinical trials do not lead to effective new treatments, they often answer important questions and help move research forward.

Patients can enter clinical trials before, during, or after starting their cancer treatment.

Some clinical trials only include patients who have not yet received treatment. Other trials test treatments for patients whose cancer has not gotten better. There are also clinical trials that test new ways to stop cancer from recurring (coming back) or reduce the side effects of cancer treatment.

Clinical trials are taking place in many parts of the country. See the Treatment Options section that follows for links to current treatment clinical trials. These have been retrieved from NCI's clinical trials database.

Follow-up tests may be needed.

Some of the tests that were done to diagnose the cancer or to find out the stage of the cancer may be repeated. Some tests will be repeated in order to see how well the treatment is working. Decisions about whether to continue, change, or stop treatment may be based on the results of these tests. This is sometimes called re-staging.

Some of the tests will continue to be done from time to time after treatment has ended. The results of these tests can show if your condition has changed or if the cancer has recurred (come back). These tests are sometimes called follow-up tests or check-ups.

Treatment Options for Adult Hodgkin Lymphoma

A link to a list of current clinical trials is included for each treatment section. For some types or stages of cancer, there may not be any trials listed. Check with your doctor for clinical trials that are not listed here but may be right for you.

Early Favorable Hodgkin Lymphoma

Treatment of early favorable Hodgkin lymphoma may include the following:

Check for U.S. clinical trials from NCI's PDQ Cancer Clinical Trials Registry that are now accepting patients with stage I adult Hodgkin lymphoma 5 and stage II adult Hodgkin lymphoma 6.

Early Unfavorable Hodgkin Lymphoma

Treatment of early unfavorable Hodgkin lymphoma may include the following:

Check for U.S. clinical trials from NCI's PDQ Cancer Clinical Trials Registry that are now accepting patients with stage I adult Hodgkin lymphoma 5 and stage II adult Hodgkin lymphoma 6.

Advanced Favorable Hodgkin Lymphoma

Treatment of advanced favorable Hodgkin lymphoma may include the following:

Check for U.S. clinical trials from NCI's PDQ Cancer Clinical Trials Registry that are now accepting patients with stage III adult Hodgkin lymphoma 7 and stage IV adult Hodgkin lymphoma 8.

Advanced Unfavorable Hodgkin Lymphoma

Treatment of advanced unfavorable Hodgkin lymphoma may include the following:

Check for U.S. clinical trials from NCI's PDQ Cancer Clinical Trials Registry that are now accepting patients with stage III adult Hodgkin lymphoma 7 and stage IV adult Hodgkin lymphoma 8.

Hodgkin Lymphoma During Pregnancy

Hodgkin Lymphoma During the First Trimester of Pregnancy

When Hodgkin lymphoma is diagnosed in the first trimester of pregnancy, it does not necessarily mean that the patient will be advised to end the pregnancy. Each patient's treatment will depend on the stage of the lymphoma, how fast it is growing, and the patient's wishes. For women who choose to continue the pregnancy, treatment of Hodgkin lymphoma during the first trimester of pregnancy may include the following:

Hodgkin Lymphoma During the Second Half of Pregnancy

When Hodgkin lymphoma is diagnosed in the second half of pregnancy, most patients can delay treatment until after the baby is born. Treatment of Hodgkin lymphoma during the second half of pregnancy may include the following:

Recurrent Adult Hodgkin Lymphoma

Treatment of recurrent Hodgkin lymphoma may include the following:

Check for U.S. clinical trials from NCI's PDQ Cancer Clinical Trials Registry that are now accepting patients with recurrent adult Hodgkin lymphoma 9.

To Learn More About Adult Hodgkin Lymphoma

For more information from the National Cancer Institute about adult Hodgkin lymphoma, see the following:

For general cancer information and other resources from the National Cancer Institute, see the following:

Get More Information From NCI

Call 1-800-4-CANCER

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Chat online

The NCI's LiveHelp® 21 online chat service provides Internet users with the ability to chat online with an Information Specialist. The service is available from 9:00 a.m. to 11:00 p.m. Eastern time, Monday through Friday. Information Specialists can help Internet users find information on NCI Web sites and answer questions about cancer.

Write to us

For more information from the NCI, please write to this address:

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Search the NCI Web site

The NCI Web site 22 provides online access to information on cancer, clinical trials, and other Web sites and organizations that offer support and resources for cancer patients and their families. For a quick search, use our “Best Bets” search box in the upper right hand corner of each Web page. The results that are most closely related to your search term will be listed as Best Bets at the top of the list of search results.

There are also many other places to get materials and information about cancer treatment and services. Hospitals in your area may have information about local and regional agencies that have information on finances, getting to and from treatment, receiving care at home, and dealing with problems related to cancer treatment.

Find Publications

The NCI has booklets and other materials for patients, health professionals, and the public. These publications discuss types of cancer, methods of cancer treatment, coping with cancer, and clinical trials. Some publications provide information on tests for cancer, cancer causes and prevention, cancer statistics, and NCI research activities. NCI materials on these and other topics may be ordered online or printed directly from the NCI Publications Locator 23. These materials can also be ordered by telephone from the Cancer Information Service toll-free at 1-800-4-CANCER (1-800-422-6237), TTY at 1-800-332-8615.

Changes to This Summary (08/26/2008)

The PDQ cancer information summaries are reviewed regularly and updated as new information becomes available. This section describes the latest changes made to this summary as of the date above.

Editorial changes were made to this summary.

About PDQ

PDQ is a comprehensive cancer database available on NCI's Web site.

PDQ is the National Cancer Institute's (NCI's) comprehensive cancer information database. Most of the information contained in PDQ is available online at NCI's Web site 22. PDQ is provided as a service of the NCI. The NCI is part of the National Institutes of Health, the federal government's focal point for biomedical research.

PDQ contains cancer information summaries.

The PDQ database contains summaries of the latest published information on cancer prevention, detection, genetics, treatment, supportive care, and complementary and alternative medicine. Most summaries are available in two versions. The health professional versions provide detailed information written in technical language. The patient versions are written in easy-to-understand, nontechnical language. Both versions provide current and accurate cancer information.

The PDQ cancer information summaries are developed by cancer experts and reviewed regularly.

Editorial Boards made up of experts in oncology and related specialties are responsible for writing and maintaining the cancer information summaries. The summaries are reviewed regularly and changes are made as new information becomes available. The date on each summary ("Date Last Modified") indicates the time of the most recent change.

PDQ also contains information on clinical trials.

A clinical trial is a study to answer a scientific question, such as whether one treatment is better than another. Trials are based on past studies and what has been learned in the laboratory. Each trial answers certain scientific questions in order to find new and better ways to help cancer patients. During treatment clinical trials, information is collected about the effects of a new treatment and how well it works. If a clinical trial shows that a new treatment is better than one currently being used, the new treatment may become "standard." Patients may want to think about taking part in a clinical trial. Some clinical trials are open only to patients who have not started treatment.

Listings of clinical trials are included in PDQ and are available online at NCI's Web site 24. Descriptions of the trials are available in health professional and patient versions. Many cancer doctors who take part in clinical trials are also listed in PDQ. For more information, call the Cancer Information Service 1-800-4-CANCER (1-800-422-6237); TTY at 1-800-332-8615.



Glossary Terms

abdomen (AB-doh-men)
The area of the body that contains the pancreas, stomach, intestines, liver, gallbladder, and other organs.
acute myelogenous leukemia (uh-KYOOT MY-eh-LAH-jeh-nus loo-KEE-mee-uh)
A quickly progressing disease in which too many immature white blood cells (not lymphocytes) are found in the blood and bone marrow. Also called AML, acute myeloid leukemia, acute myeloblastic leukemia, acute nonlymphocytic leukemia, and ANLL.
adrenal gland (uh-DREE-nul...)
A small gland that makes steroid hormones, adrenaline, and noradrenaline. These hormones help control heart rate, blood pressure, and other important body functions. There are two adrenal glands, one on top of each kidney. Also called suprarenal gland.
aorta (a-OR-tuh)
The largest artery in the body. It carries oxygen-rich blood away from the heart to vessels that reach the rest of the body.
B lymphocyte
A white blood cell that comes from bone marrow. As part of the immune system, B lymphocytes make antibodies and help fight infections. Also called B cell.
biopsy (BY-op-see)
The removal of cells or tissues for examination by a pathologist. The pathologist may study the tissue under a microscope or perform other tests on the cells or tissue. There are many different types of biopsy procedures. The most common types include: (1) incisional biopsy, in which only a sample of tissue is removed; (2) excisional biopsy, in which an entire lump or suspicious area is removed; and (3) needle biopsy, in which a sample of tissue or fluid is removed with a needle. When a wide needle is used, the procedure is called a core biopsy. When a thin needle is used, the procedure is called a fine-needle aspiration biopsy.
blood
A tissue with red blood cells, white blood cells, platelets, and other substances suspended in fluid called plasma. Blood takes oxygen and nutrients to the tissues, and carries away wastes.
blood cell count
A test to check the number of red blood cells, white blood cells, and platelets in a sample of blood. Also called complete blood count and CBC.
blood chemistry study
A procedure in which a sample of blood is examined to measure the amounts of certain substances made in the body. An abnormal amount of a substance can be a sign of disease in the organ or tissue that produces it.
bone cancer (... KAN-ser)
Primary bone cancer is cancer that forms in cells of the bone. Some types of primary bone cancer are osteosarcoma, Ewing sarcoma, malignant fibrous histiocytoma, and chondrosarcoma. Secondary bone cancer is cancer that spreads to the bone from another part of the body (such as the prostate, breast, or lung).
bone marrow (bone MAYR-oh)
The soft, sponge-like tissue in the center of most bones. It produces white blood cells, red blood cells, and platelets.
bone marrow aspiration (bone MAYR-oh as-pih-RAY-shun)
The removal of a small sample of bone marrow (usually from the hip) through a needle for examination under a microscope.
bone marrow biopsy (bone MAYR-oh BY-op-see)
The removal of a sample of tissue from the bone marrow with a needle for examination under a microscope.
breast cancer (brest KAN-ser)
Cancer that forms in tissues of the breast, usually the ducts (tubes that carry milk to the nipple) and lobules (glands that make milk). It occurs in both men and women, although male breast cancer is rare.
cancer (KAN-ser)
A term for diseases in which abnormal cells divide without control. Cancer cells can invade nearby tissues and can spread to other parts of the body through the blood and lymph systems. There are several main types of cancer. Carcinoma is cancer that begins in the skin or in tissues that line or cover internal organs. Sarcoma is cancer that begins in bone, cartilage, fat, muscle, blood vessels, or other connective or supportive tissue. Leukemia is cancer that starts in blood-forming tissue such as the bone marrow, and causes large numbers of abnormal blood cells to be produced and enter the blood. Lymphoma and multiple myeloma are cancers that begin in the cells of the immune system. Central nervous system cancers are cancers that begin in the tissues of the brain and spinal cord.
capillary
The smallest type of blood vessel. A capillary connects an arteriole (small artery) to a venule (small vein) to form a network of blood vessels in almost all parts of the body. The wall of a capillary is thin and leaky, and capillaries are involved in the exchange of fluids and gases between tissues and the blood.
catheter (KA-theh-ter)
A flexible tube used to deliver fluids into or withdraw fluids from the body.
cell (sel)
The individual unit that makes up the tissues of the body. All living things are made up of one or more cells.
centimeter (SEN-tih-MEE-ter)
A measure of length in the metric system. There are 100 centimeters in a meter and 2½ centimeters in an inch.
chemotherapy (KEE-moh-THAYR-uh-pee)
Treatment with drugs that kill cancer cells.
chest x-ray
An x-ray of the structures inside the chest. An x-ray is a type of high-energy radiation that can go through the body and onto film, making pictures of areas inside the chest, which can be used to diagnose disease.
clinical trial
A type of research study that tests how well new medical approaches work in people. These studies test new methods of screening, prevention, diagnosis, or treatment of a disease. Also called a clinical study.
colorectal cancer (KOH-loh-REK-tul KAN-ser)
Cancer that develops in the colon (the longest part of the large intestine) and/or the rectum (the last several inches of the large intestine before the anus).
combination chemotherapy (KOM-bih-NAY-shun KEE-moh-THAYR-uh-pee)
Treatment using more than one anticancer drug.
complete blood count
CBC. A test to check the number of red blood cells, white blood cells, and platelets in a sample of blood. Also called blood cell count and CBC.
core biopsy (... BY-op-see)
The removal of a tissue sample with a wide needle for examination under a microscope.
coronary artery disease (KOR-uh-NAYR-ee AR-tuh-ree dih-ZEEZ)
CAD. A disease in which there is a narrowing or blockage of the coronary arteries (blood vessels that carry blood and oxygen to the heart). Coronary artery disease is usually caused by atherosclerosis (a build up of fatty material and plaque inside the coronary arteries). The disease may cause chest pain, shortness of breath during exercise, and heart attacks. The risk of coronary artery disease is increased by having a family history of coronary artery disease before age 50, older age, smoking tobacco, high blood pressure, high cholesterol, diabetes, lack of exercise, and obesity. Also called CAD and coronary heart disease.
CT scan
Computed tomography scan. A series of detailed pictures of areas inside the body taken from different angles; the pictures are created by a computer linked to an x-ray machine. Also called computed tomography scan, computerized tomography, computerized axial tomography scan, and CAT scan.
diagnosis (DY-ug-NOH-sis)
The process of identifying a disease, such as cancer, from its signs and symptoms.
diaphragm (DY-uh-fram)
The thin muscle below the lungs and heart that separates the chest from the abdomen.
dose
The amount of medicine taken, or radiation given, at one time.
drug
Any substance, other than food, that is used to prevent, diagnose, treat or relieve symptoms of a disease or abnormal condition. Also refers to a substance that alters mood or body function, or that can be habit-forming or addictive, especially a narcotic.
endocrinologist (en-duh-krih-NAH-loh-jist)
A doctor who specializes in diagnosing and treating hormone disorders.
Epstein-Barr virus (ep-stine-BAR VY-rus)
A common virus that remains dormant in most people. It causes infectious mononucleosis and has been associated with certain cancers, including Burkitt lymphoma, immunoblastic lymphoma, and nasopharyngeal carcinoma. Also called EBV.
excisional biopsy (ek-SIH-zhun-al BY-op-see)
A surgical procedure in which an entire lump or suspicious area is removed for diagnosis. The tissue is then examined under a microscope.
external radiation therapy (...RAY-dee-AY-shun THAYR-uh-pee)
A type of radiation therapy that uses a machine to aim high-energy rays at the cancer from outside of the body. Also called external-beam radiation therapy.
fatigue
A condition marked by extreme tiredness and inability to function due lack of energy. Fatigue may be acute or chronic.
fetus (FEET-us)
The developing offspring from 7 to 8 weeks after conception until birth.
fever (FEE-ver)
An increase in body temperature above normal (98.6 degrees F), usually caused by disease.
follow-up
Monitoring a person's health over time after treatment. This includes keeping track of the health of people who participate in a clinical study or clinical trial for a period of time, both during the study and after the study ends.
glucose
A type of sugar; the chief source of energy for living organisms.
groin
The area where the thigh meets the abdomen.
hematologist (HEE-muh-TAH-loh-jist)
A doctor who specializes in treating blood disorders.
hemoglobin (HEE-moh-GLOH-bin)
The substance inside red blood cells that binds to oxygen in the lungs and carries it to the tissues.
high-dose chemotherapy (hy-dose kee-moh-THAYR-uh-pee)
An intensive drug treatment to kill cancer cells, but that also destroys the bone marrow and can cause other severe side effects. High-dose chemotherapy is usually followed by bone marrow or stem cell transplantation to rebuild the bone marrow.
Hodgkin lymphoma (HOJ-kin lim-FOH-muh)
A cancer of the immune system that is marked by the presence of a type of cell called the Reed-Sternberg cell. The two major types of Hodgkin lymphoma are classical Hodgkin lymphoma and nodular lymphocyte-predominant Hodgkin lymphoma. Symptoms include the painless enlargement of lymph nodes, spleen, or other immune tissue. Other symptoms include fever, weight loss, fatigue, or night sweats. Also called Hodgkin disease.
hormone (HOR-mone)
One of many chemicals made by glands in the body. Hormones circulate in the bloodstream and control the actions of certain cells or organs. Some hormones can also be made in the laboratory.
immune system (ih-MYOON SIS-tem)
The complex group of organs and cells that defends the body against infections and other diseases.
immunophenotyping (IM-yoo-no-FEE-no-tie-ping)
A process used to identify cells, based on the types of antigens or markers on the surface of the cell. This process is used to diagnose specific types of leukemia and lymphoma by comparing the cancer cells to normal cells of the immune system.
incision (in-SIH-zhun)
A cut made in the body to perform surgery.
incisional biopsy (in-SIH-zhun-al BY-op-see)
A surgical procedure in which a portion of a lump or suspicious area is removed for diagnosis. The tissue is then examined under a microscope.
infection
Invasion and multiplication of germs in the body. Infections can occur in any part of the body and can spread throughout the body. The germs may be bacteria, viruses, yeast, or fungi. They can cause a fever and other problems, depending on where the infection occurs. When the body’s natural defense system is strong, it can often fight the germs and prevent infection. Some cancer treatments can weaken the natural defense system.
infertility (IN-fer-TIH-lih-tee)
The inability to produce children.
infusion (in-FYOO-zhun)
A method of putting fluids, including drugs, into the bloodstream. Also called intravenous infusion.
injection
Use of a syringe and needle to push fluids or drugs into the body; often called a "shot."
internal radiation therapy (in-TER-nul RAY-dee-AY-shun THAYR-uh-pee)
A type of radiation therapy in which radioactive material sealed in needles, seeds, wires, or catheters is placed directly into or near a tumor. Also called brachytherapy, radiation brachytherapy, and implant radiation therapy.
invasive cancer (in-VAY-siv KAN-ser)
Cancer that has spread beyond the layer of tissue in which it developed and is growing into surrounding, healthy tissues. Also called infiltrating cancer.
laparotomy (LA-puh-RAH-toh-mee)
A surgical incision made in the wall of the abdomen.
late effects
Side effects of cancer treatment that appear months or years after treatment has ended. Late effects include physical and mental problems and second cancers.
lung
One of a pair of organs in the chest that supplies the body with oxygen, and removes carbon dioxide from the body.
lymph (limf)
The clear fluid that travels through the lymphatic system and carries cells that help fight infections and other diseases. Also called lymphatic fluid.
lymph node (limf node)
A rounded mass of lymphatic tissue that is surrounded by a capsule of connective tissue. Lymph nodes filter lymph (lymphatic fluid), and they store lymphocytes (white blood cells). They are located along lymphatic vessels. Also called lymph gland.
lymph vessel (limf ...)
A thin tube that carries lymph (lymphatic fluid) and white blood cells through the lymphatic system. Also called lymphatic vessel.
lymphatic system (lim-FA-tik SIS-tem)
The tissues and organs that produce, store, and carry white blood cells that fight infections and other diseases. This system includes the bone marrow, spleen, thymus, lymph nodes, and lymphatic vessels (a network of thin tubes that carry lymph and white blood cells). Lymphatic vessels branch, like blood vessels, into all the tissues of the body.
lymphocyte (LIM-foh-site)
A type of white blood cell. Lymphocytes have a number of roles in the immune system, including the production of antibodies and other substances that fight infections and other diseases.
malignant (muh-LIG-nunt)
Cancerous. Malignant tumors can invade and destroy nearby tissue and spread to other parts of the body.
mantle field (MAN-tul)
The area of the neck, chest, and lymph nodes in the armpit that are exposed to radiation.
medical oncologist (MEH-dih-kul on-KAH-loh-jist)
A doctor who specializes in diagnosing and treating cancer using chemotherapy, hormonal therapy, and biological therapy. A medical oncologist often is the main health care provider for someone who has cancer. A medical oncologist also gives supportive care and may coordinate treatment given by other specialists.
metastasis (meh-TAS-tuh-sis)
The spread of cancer from one part of the body to another. A tumor formed by cells that have spread is called a “metastatic tumor” or a “metastasis.” The metastatic tumor contains cells that are like those in the original (primary) tumor. The plural form of metastasis is metastases (meh-TAS-tuh-SEEZ).
MRI
A procedure in which radio waves and a powerful magnet linked to a computer are used to create detailed pictures of areas inside the body. These pictures can show the difference between normal and diseased tissue. MRI makes better images of organs and soft tissue than other scanning techniques, such as computed tomography (CT) or x-ray. MRI is especially useful for imaging the brain, the spine, the soft tissue of joints, and the inside of bones. Also called magnetic resonance imaging, nuclear magnetic resonance imaging, and NMRI.
National Cancer Institute
The National Cancer Institute, part of the National Institutes of Health of the United States Department of Health and Human Services, is the Federal Government's principal agency for cancer research. The National Cancer Institute conducts, coordinates, and funds cancer research, training, health information dissemination, and other programs with respect to the cause, diagnosis, prevention, and treatment of cancer. Access the National Cancer Institute Web site at http://www.cancer.gov. Also called NCI.
NCI
NCI, part of the National Institutes of Health of the United States Department of Health and Human Services, is the Federal Government's principal agency for cancer research. It conducts, coordinates, and funds cancer research, training, health information dissemination, and other programs with respect to the cause, diagnosis, prevention, and treatment of cancer. Access the NCI Web site at http://www.cancer.gov. Also called National Cancer Institute.
neurologist (noo-RAH-loh-jist)
A doctor who specializes in the diagnosis and treatment of disorders of the nervous system.
neurosurgeon (NOO-ro-SER-jun)
A doctor who specializes in surgery on the brain, spine, and other parts of the nervous system.
non-Hodgkin lymphoma (non-HOJ-kin lim-FOH-muh)
Any of a large group of cancers of the immune system. Non-Hodgkin lymphomas can occur at any age and are often marked by enlarged lymph nodes, fever, and weight loss. There are many different types of non-Hodgkin lymphoma, which can be divided into aggressive (fast-growing) and indolent (slow-growing) types and can be classified as either B-cell or T-cell non-Hodgkin lymphoma. B-cell non-Hodgkin lymphomas include Burkitt lymphoma, diffuse large B-cell lymphoma, follicular lymphoma, immunoblastic large cell lymphoma, precursor B-lymphoblastic lymphoma, and mantle cell lymphoma. T-cell non-Hodgkin lymphomas include mycosis fungoides, anaplastic large cell lymphoma, and precursor T-lymphoblastic lymphoma. Lymphomas related to lymphoproliferative disorders following bone marrow or stem cell transplantation are usually B-cell non-Hodgkin lymphomas. Prognosis and treatment depend on the stage and type of disease. Also called NHL.
oncology (on-KAH-loh-jee)
The study of cancer.
organ
A part of the body that performs a specific function. For example, the heart is an organ.
oxygen (OK-sih-jen)
A colorless, odorless gas. It is needed for animal and plant life. Oxygen that is breathed in enters the blood from the lungs and travels to the tissues.
palliative therapy (PA-lee-uh-tiv THAYR-uh-pee)
Treatment given to relieve the symptoms and reduce the suffering caused by cancer and other life-threatening diseases. Palliative cancer therapies are given together with other cancer treatments, from the time of diagnosis, through treatment, survivorship, recurrent or advanced disease, and at the end of life.
pathologist (puh-THAH-loh-jist)
A doctor who identifies diseases by studying cells and tissues under a microscope.
PDQ
PDQ is an online database developed and maintained by the National Cancer Institute. Designed to make the most current, credible, and accurate cancer information available to health professionals and the public, PDQ contains peer-reviewed summaries on cancer treatment, screening, prevention, genetics, complementary and alternative medicine, and supportive care; a registry of cancer clinical trials from around the world; and directories of physicians, professionals who provide genetics services, and organizations that provide cancer care. Most of this information, and more specific information about PDQ, can be found on the NCI's Web site at http://www.cancer.gov/cancertopics/pdq. Also called Physician Data Query.
pelvis
The lower part of the abdomen, located between the hip bones.
PET scan
Positron emission tomography scan. A procedure in which a small amount of radioactive glucose (sugar) is injected into a vein, and a scanner is used to make detailed, computerized pictures of areas inside the body where the glucose is used. Because cancer cells often use more glucose than normal cells, the pictures can be used to find cancer cells in the body. Also called positron emission tomography scan.
physical examination
An exam of the body to check for general signs of disease.
platelet (PLATE-let)
A type of blood cell that helps prevent bleeding by causing blood clots to form. Also called a thrombocyte.
primary tumor
The original tumor.
prognosis (prog-NO-sis)
The likely outcome or course of a disease; the chance of recovery or recurrence.
progressive disease
Cancer that is growing, spreading, or getting worse.
protein (PRO-teen)
A molecule made up of amino acids that are needed for the body to function properly. Proteins are the basis of body structures such as skin and hair and of substances such as enzymes, cytokines, and antibodies.
quality of life
The overall enjoyment of life. Many clinical trials assess the effects of cancer and its treatment on the quality of life. These studies measure aspects of an individual’s sense of well-being and ability to carry out various activities.
radiation (RAY-dee-AY-shun)
Energy released in the form of particle or electromagnetic waves. Common sources of radiation include radon gas, cosmic rays from outer space, medical x-rays, and energy given off by a radioisotope (unstable form of a chemical element that releases radiation as it breaks down and becomes more stable).
radiation oncologist (RAY-dee-AY-shun on-KAH-loh-jist)
A doctor who specializes in using radiation to treat cancer.
radiation therapy (RAY-dee-AY-shun THAYR-uh-pee)
The use of high-energy radiation from x-rays, gamma rays, neutrons, protons, and other sources to kill cancer cells and shrink tumors. Radiation may come from a machine outside the body (external-beam radiation therapy), or it may come from radioactive material placed in the body near cancer cells (internal radiation therapy). Systemic radiation therapy uses a radioactive substance, such as a radiolabeled monoclonal antibody, that travels in the blood to tissues throughout the body. Also called radiotherapy and irradiation.
radioactive (RAY-dee-oh-AK-tiv)
Giving off radiation.
radioactive seed (RAY-dee-oh-AK-tiv...)
A small, radioactive pellet that is placed in or near a tumor. Cancer cells are killed by the energy given off as the radioactive material breaks down and becomes more stable.
recur
To come back or to return.
recurrent cancer (ree-KER-ent KAN-ser)
Cancer that has recurred (come back), usually after a period of time during which the cancer could not be detected. The cancer may come back to the same place as the original (primary) tumor or to another place in the body. Also called recurrence.
red blood cell
RBC. A cell that carries oxygen to all parts of the body. Also called RBC and erythrocyte.
Reed-Sternberg cell
A type of cell that appears in people with Hodgkin disease. The number of these cells increases as the disease advances.
regional chemotherapy (REE-juh-nul KEE-moh-THAYR-uh-pee)
Treatment with anticancer drugs directed to a specific area of the body.
rehabilitation specialist
A healthcare professional who helps people recover from an illness or injury and return to daily life. Examples of rehabilitation specialists are physical therapists and occupational therapists.
reproductive system (REE-proh-DUK-tiv SIS-tem)
The organs involved in producing offspring. In women, this system includes the ovaries, the fallopian tubes, the uterus (womb), the cervix, and the vagina (birth canal). In men, it includes the prostate, the testes, and the penis.
risk factor
Something that may increase the chance of developing a disease. Some examples of risk factors for cancer include age, a family history of certain cancers, use of tobacco products, certain eating habits, obesity, lack of exercise, exposure to radiation or other cancer-causing agents, and certain genetic changes.
scalpel (SKAL-pul)
A small, thin knife used for surgery.
scan
A picture of structures inside the body. Scans often used in diagnosing, staging, and monitoring disease include liver scans, bone scans, and computed tomography (CT) or computerized axial tomography (CAT) scans and magnetic resonance imaging (MRI) scans. In liver scanning and bone scanning, radioactive substances that are injected into the bloodstream collect in these organs. A scanner that detects the radiation is used to create pictures. In CT scanning, an x-ray machine linked to a computer is used to produce detailed pictures of organs inside the body. MRI scans use a large magnet connected to a computer to create pictures of areas inside the body.
second primary cancer
Refers to a new primary cancer in a person with a history of cancer.
sedimentation rate
The distance red blood cells travel in one hour in a sample of blood as they settle to the bottom of a test tube. The sedimentation rate is increased in inflammation, infection, cancer, rheumatic diseases, and diseases of the blood and bone marrow. Also called erythrocyte sedimentation rate and ESR.
side effect
A problem that occurs when treatment affects healthy tissues or organs. Some common side effects of cancer treatment are fatigue, pain, nausea, vomiting, decreased blood cell counts, hair loss, and mouth sores.
solid tumor
An abnormal mass of tissue that usually does not contain cysts or liquid areas. Solid tumors may be benign (not cancerous), or malignant (cancerous). Different types of solid tumors are named for the type of cells that form them. Examples of solid tumors are sarcomas, carcinomas, and lymphomas. Leukemias (cancers of the blood) generally do not form solid tumors.
sonogram (SON-o-gram)
A computer picture of areas inside the body created by bouncing high-energy sound waves (ultrasound) off internal tissues or organs. Also called an ultrasonogram.
spinal column (SPY-nul KAH-lum)
The bones, muscles, tendons, and other tissues that reach from the base of the skull to the tailbone. The spinal column encloses the spinal cord and the fluid surrounding the spinal cord. Also called spine, backbone, and vertebral column.
spleen
An organ that is part of the lymphatic system. The spleen makes lymphocytes, filters the blood, stores blood cells, and destroys old blood cells. It is located on the left side of the abdomen near the stomach.
stage
The extent of a cancer in the body. Staging is usually based on the size of the tumor, whether lymph nodes contain cancer, and whether the cancer has spread from the original site to other parts of the body.
stage I adult Hodgkin lymphoma (... HOJ-kin lim-FOH-muh)
Stage I is divided into stage I and stage IE. In stage I, cancer is found in a single group of lymph nodes. In stage IE, cancer is found in one area or organ other than the lymph nodes.
stage II adult Hodgkin lymphoma (... HOJ-kin lim-FOH-muh)
Stage II is divided into stage II and stage IIE. In stage II, cancer is found in two or more lymph node groups on the same side of the diaphragm (the thin muscle below the lungs that helps breathing and separates the chest from the abdomen). In stage IIE, cancer is found in one area or organ other than the lymph nodes and in the lymph nodes near that area or organ, and may have spread to other lymph node groups on the same side of the diaphragm.
stage III adult Hodgkin lymphoma (... HOJ-kin lim-FOH-muh)
Stage III is divided into stage III, stage IIIE, stage IIIS, and stage IIIS+E. In stage III, cancer is found in lymph node groups on both sides of the diaphragm (the thin muscle below the lungs that helps breathing and separates the chest from the abdomen). In stage IIIE, cancer is found in lymph node groups on both sides of the diaphragm and in a nearby area or organ other than the lymph nodes. In stage IIIS, cancer is found in lymph node groups on both sides of the diaphragm and in the spleen. In stage IIIE+S, cancer is found in lymph node groups on both sides of the diaphragm, in a nearby area or organ, and in the spleen. Stage III is also divided into stage III(1) and stage III(2). In stage III(1), cancer is limited to the upper abdomen above the renal vein. In stage III(2), cancer is found in lymph nodes in the pelvis and/or near the heart.
stage IV adult Hodgkin lymphoma (... HOJ-kin lim-FOH-muh)
The cancer is found in at least one organ other than the lymph nodes and may be in the lymph nodes near the organ(s); or the cancer is found in one organ other than the lymph nodes and has spread to lymph nodes far away from the organ.
staging (STAY-jing)
Performing exams and tests to learn the extent of the cancer within the body, especially whether the disease has spread from the original site to other parts of the body. It is important to know the stage of the disease in order to plan the best treatment.
standard therapy (...THAYR-uh-pee)
In medicine, treatment that experts agree is appropriate, accepted, and widely used. Health care providers are obligated to provide patients with standard therapy. Also called standard of care or best practice.
stem cell
A cell from which other types of cells develop. For example, blood cells develop from blood-forming stem cells.
stem cell transplantation (stem sel tranz-plan-TAY-shun)
A method of replacing immature blood-forming cells that were destroyed by cancer treatment. The stem cells are given to the person after treatment to help the bone marrow recover and continue producing healthy blood cells.
steroid drug (STAYR-oyd)
A type of drug used to relieve swelling and inflammation. Some steroid drugs may also have antitumor effects.
steroid therapy (STAYR-oyd THAYR-uh-pee)
Treatment with corticosteroid drugs to reduce swelling, pain, and other symptoms of inflammation.
stomach (STUH-muk)
An organ that is part of the digestive system. The stomach helps digest food by mixing it with digestive juices and churning it into a thin liquid.
surgery (SER-juh-ree)
A procedure to remove or repair a part of the body or to find out whether disease is present. An operation.
symptom
An indication that a person has a condition or disease. Some examples of symptoms are headache, fever, fatigue, nausea, vomiting, and pain.
systemic chemotherapy (sis-TEH-mik KEE-moh-THAYR-uh-pee)
Treatment with anticancer drugs that travel through the blood to cells all over the body.
T cell
One type of white blood cell that attacks virus-infected cells, foreign cells, and cancer cells. T cells also produce a number of substances that regulate the immune response. Also called T lymphocyte.
thoracentesis (THOH-ruh-sen-TEE-sis)
Removal of fluid from the pleural cavity through a needle inserted between the ribs.
thymus
An organ that is part of the lymphatic system, in which T lymphocytes grow and multiply. The thymus is in the chest behind the breastbone.
thyroid (THY-royd)
A gland located beneath the voice box (larynx) that makes thyroid hormone and calcitonin. The thyroid helps regulate growth and metabolism.
tissue (TISH-oo)
A group or layer of cells that work together to perform a specific function.
tonsil
One of two small masses of lymphoid tissue on either side of the throat.
tumor (TOO-mer)
An abnormal mass of tissue that results when cells divide more than they should or do not die when they should. Tumors may be benign (not cancerous), or malignant (cancerous). Also called neoplasm.
ultrasound energy
A form of therapy being studied as an anticancer treatment. Intensified ultrasound energy can be directed at cancer cells to heat them and kill them.
vein (vayn)
A blood vessel that carries blood to the heart from tissues and organs in the body.
vinblastine
An anticancer drug that belongs to the family of plant drugs called vinca alkaloids. It is a mitotic inhibitor.
watchful waiting
Closely monitoring a patient's condition but withholding treatment until symptoms appear or change. Also called active surveillance, expectant management, and observation.
white blood cell
Refers to a blood cell that does not contain hemoglobin. White blood cells include lymphocytes, neutrophils, eosinophils, macrophages, and mast cells. These cells are made by bone marrow and help the body fight infections and other diseases. Also called WBC.
x-ray
A type of high-energy radiation. In low doses, x-rays are used to diagnose diseases by making pictures of the inside of the body. In high doses, x-rays are used to treat cancer.


Table of Links

1http://cancer.gov/cancertopics/pdq/treatment/adult-non-hodgkins/Patient
2http://cancer.gov/cancertopics/pdq/treatment/childhodgkins/Patient
3http://cancer.gov/cancertopics/pdq/treatment/AIDS-related-lymphoma/Patient
4http://cancer.gov/clinicaltrials
5http://www.cancer.gov/Search/ClinicalTrialsLink.aspx?diagnosis=40961&tt=1&a
mp;format=1&cn=1
6http://www.cancer.gov/Search/ClinicalTrialsLink.aspx?diagnosis=41815&tt=1&a
mp;format=1&cn=1
7http://www.cancer.gov/Search/ClinicalTrialsLink.aspx?diagnosis=42483&tt=1&a
mp;format=1&cn=1
8http://www.cancer.gov/Search/ClinicalTrialsLink.aspx?diagnosis=42945&tt=1&a
mp;format=1&cn=1
9http://www.cancer.gov/Search/ClinicalTrialsLink.aspx?diagnosis=42968&tt=1&a
mp;format=1&cn=1
10http://www.cancer.gov/cancertopics/types/hodgkinslymphoma
11http://www.cancer.gov/cancertopics/wyntk/hodgkins
12http://www.cancer.gov/cancertopics/wyntk/overview
13http://www.cancer.gov/cancertopics/understandingcancer/cancer
14http://www.cancer.gov/cancertopics/factsheet/Detection/staging
15http://www.cancer.gov/cancertopics/chemotherapy-and-you
16http://www.cancer.gov/cancertopics/radiation-therapy-and-you
17http://www.cancer.gov/cancertopics/coping
18http://www.cancer.gov/cancertopics/support
19http://www.cancer.gov/cancertopics/cancerlibrary
20http://dccps.cancer.gov/ocs/resources.html
21https://cissecure.nci.nih.gov/livehelp/welcome.asp
22http://cancer.gov
23https://cissecure.nci.nih.gov/ncipubs
24http://cancer.gov/clinical_trials