General Information About Paranasal Sinus and Nasal Cavity Cancer
Stages of Paranasal Sinus and Nasal Cavity Cancer
Recurrent Paranasal Sinus and Nasal Cavity Cancer
Treatment Option Overview
Treatment Options by Stage

Stage I Paranasal Sinus and Nasal Cavity Cancer Stage II Paranasal Sinus and Nasal Cavity Cancer Stage III Paranasal Sinus and Nasal Cavity Cancer Stage IV Paranasal Sinus and Nasal Cavity Cancer

Treatment Options for Recurrent Paranasal Sinus and Nasal Cavity Cancer
To Learn More About Paranasal Sinus and Nasal Cavity Cancer
Get More Information From NCI
Changes to This Summary (06/18/2008)
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General Information About Paranasal Sinus and Nasal Cavity Cancer

Key Points for This Section

Paranasal sinus and nasal cavity cancer is a disease in which malignant (cancer) cells form in the tissues of the paranasal sinuses and nasal cavity. Different types of cells in the paranasal sinus and nasal cavity may become malignant. Being exposed to certain chemicals or dust in the workplace can increase the risk of developing paranasal sinus and nasal cavity cancer. Possible signs of paranasal sinus and nasal cavity cancer include sinus problems and nosebleeds. Tests that examine the sinuses and nasal cavity are used to detect (find) and diagnose paranasal sinus and nasal cavity cancer. Certain factors affect prognosis (chance of recovery) and treatment options.

Paranasal sinus and nasal cavity cancer is a disease in which malignant (cancer) cells form in the tissues of the paranasal sinuses and nasal cavity.

Paranasal sinuses

"Paranasal" means near the nose. The paranasal sinuses are hollow, air-filled spaces in the bones around the nose. The sinuses are lined with cells that make mucus, which keeps the inside of the nose from drying out during breathing.

There are several paranasal sinuses named after the bones that surround them:

• The frontal sinuses are in the lower forehead above the nose.
• The maxillary sinuses are in the cheekbones on either side of the nose.
• The ethmoid sinuses are beside the upper nose, between the eyes.
• The sphenoid sinuses are behind the nose, in the center of the skull.

Nasal cavity

The nose opens into the nasal cavity, which is divided into two nasal passages. Air moves through these passages during breathing. The nasal cavity lies above the bone that forms the roof of the mouth and curves down at the back to join the throat. The area just inside the nostrils is called the nasal vestibule. A small area of special cells in the roof of each nasal passage sends signals to the brain to give the sense of smell.

Together the paranasal sinuses and the nasal cavity filter and warm the air, and make it moist before it goes into the lungs. The movement of air through the sinuses and other parts of the respiratory system help make sounds for talking.

Different types of cells in the paranasal sinus and nasal cavity may become malignant.

The most common type of paranasal sinus and nasal cavity cancer is squamous cell carcinoma. This type of cancer forms in the squamous cells (thin, flat cells) lining the inside of the paranasal sinuses and the nasal cavity.

Other types of paranasal sinus and nasal cavity cancer include the following:

• Melanoma: Cancer that starts in cells called melanocytes, the cells that give skin its natural color.
• Sarcoma: Cancer that starts in muscle or connective tissue.
• Inverting papilloma: Benign tumors that form inside the nose. A small number of these change into cancer.
• Midline granulomas: Cancer of tissues in the middle part of the face.

Being exposed to certain chemicals or dust in the workplace can increase the risk of developing paranasal sinus and nasal cavity cancer.

Anything that increases your chance 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 paranasal sinus and nasal cavity cancer include the following:

• Being exposed to certain workplace chemicals or dust, such as those found in the following jobs:
  • Furniture-making.
  • Sawmill work.
  • Woodworking (carpentry).
  • Shoemaking.
  • Metal-plating.
  • Flour mill or bakery work.
• Being male and older than 40 years.
• Smoking.

Possible signs of paranasal sinus and nasal cavity cancer include sinus problems and nosebleeds.

These and other symptoms may be caused by paranasal sinus and nasal cavity cancer. Other conditions may cause the same symptoms. There may be no symptoms in the early stages. Symptoms may appear as the tumor grows. A doctor should be consulted if any of the following problems occur:

• Blocked sinuses that do not clear, or sinus pressure.
• Headaches or pain in the sinus areas.
• A runny nose.
• Nosebleeds.
• A lump or sore inside the nose that does not heal.
• A lump on the face or roof of the mouth.
• Numbness or tingling in the face.
• Swelling or other trouble with the eyes, such as double vision or the eyes pointing in different directions.
• Pain in the upper teeth, loose teeth, or dentures that no longer fit well.
• Pain or pressure in the ear.

Tests that examine the sinuses and nasal cavity are used to detect (find) and diagnose paranasal sinus and nasal cavity cancer.

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 health habits and past illnesses and treatments will also be taken.
• Physical exam of the nose, face, and neck: An exam in which the doctor looks into the nose with a small, long-handled mirror to check for abnormal areas and checks the face and neck for lumps or swollen lymph nodes.
• X-rays of the head, neck, and 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.
• Nasoscopy: A procedure to look inside the nose for abnormal areas. A nasoscope is inserted into the nose. A nasoscope is a thin, tube-like instrument with a light and a lens for viewing. It may also have a tool to remove tissue samples, which are checked under a microscope for signs of cancer.
• Biopsy: The removal of cells or tissues so they can be viewed under a microscope by a pathologist to check for signs of cancer.

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

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

• Where the tumor is in the paranasal sinus or nasal cavity and whether it has spread.
• The size of the tumor.
• The type of cancer.
• The patient's age and general health.
• Whether the cancer has just been diagnosed or has recurred (come back).

Paranasal sinus and nasal cavity cancers often have spread by the time they are diagnosed and are hard to cure. After treatment, a lifetime of frequent and careful follow-up is important because there is an increased risk of developing a second kind of cancer in the head or neck.

Stages of Paranasal Sinus and Nasal Cavity Cancer

Key Points for This Section

After paranasal sinus and nasal cavity cancer has been diagnosed, tests are done to find out if cancer cells have spread within the paranasal sinuses and nasal cavity or to other parts of the body. There are three ways that cancer spreads in the body. There is no standard staging system for cancer of the sphenoid and frontal sinuses. The following stages are used for maxillary sinus cancer: Stage 0 (Carcinoma in Situ) Stage I Stage II Stage III Stage IV The following stages are used for nasal cavity and ethmoid sinus cancer: Stage 0 (Carcinoma in Situ) Stage I Stage II Stage III Stage IV

After paranasal sinus and nasal cavity cancer has been diagnosed, tests are done to find out if cancer cells have spread within the paranasal sinuses and nasal cavity or to other parts of the body.

The process used to find out if cancer has spread within the paranasal sinuses and nasal cavity 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:

• X-rays of the head, neck, and 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.
• Endoscopy: A procedure to look at organs and tissues inside the body to check for abnormal areas. An endoscope is inserted through an opening in the body, such as the nose or mouth. An endoscope is a thin, tube-like instrument with a light and a lens for viewing. It may also have a tool to remove tissue or lymph node samples, which are checked under a microscope for signs of disease.
• 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.
• MRI (magnetic resonance imaging) with gadolinium: A procedure that uses a magnet, radio waves, and a computer to make a series of detailed pictures of areas inside the body. Sometimes a substance called gadolinium is injected into a vein. The gadolinium collects around the cancer cells so they show up brighter in the picture. This procedure is also called nuclear magnetic resonance imaging (NMRI).
• Bone scan: A procedure to check if there are rapidly dividing cells, such as cancer cells, in the bone. A very small amount of radioactive material is injected into a vein and travels through the bloodstream. The radioactive material collects in the bones and is detected by a scanner.

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.

There is no standard staging system for cancer of the sphenoid and frontal sinuses.

Enlarge

Pea, peanut, walnut, and lime show tumor sizes.

The following stages are used for maxillary sinus cancer:

Stage 0 (Carcinoma in Situ)

In stage 0, abnormal cells are found in the innermost lining of the maxillary sinus. These abnormal cells may become cancer and spread into nearby normal tissue. Stage 0 is also called carcinoma in situ.

Stage I

In stage I, cancer has formed in the mucous membranes of the maxillary sinus.

Stage II

In stage II, cancer has spread to bone around the maxillary sinus, including the roof of the mouth and the nose, but not to bone at the back of the maxillary sinus or the base of the skull.

Stage III

In stage III, cancer has spread to any of the following:

• Bone at the back of the maxillary sinus.
• Tissues under the skin.
• The eye socket.
• The base of the skull.
• The ethmoid sinuses.

or

Cancer has spread to one lymph node on the same side of the neck as the cancer and the lymph node is 3 centimeters or smaller. Cancer has also spread to any of the following:

• The lining of the maxillary sinus.
• Bones around the maxillary sinus, including the roof of the mouth and the nose.
• Tissues under the skin.
• The eye socket.
• The base of the skull.
• The ethmoid sinuses.

Stage IV

Stage IV is divided into stage IVA, IVB, and IVC.

Stage IVA

In stage IVA, cancer has spread either:

• to one lymph node on the same side of the neck as the cancer and the lymph node is larger than 3 centimeters but not larger than 6 centimeters; or
• to more than one lymph node anywhere in the neck, and they are all 6 centimeters or smaller;

and cancer has spread to any of the following:

• The lining of the maxillary sinus.
• Bones around the maxillary sinus, including the roof of the mouth and the nose.
• Tissues under the skin.
• The eye socket.
• The base of the skull.
• The ethmoid sinuses.

or

Cancer has spread to any of the following:

• The front of the eye.
• The skin of the cheek.
• The base of the skull.
• Behind the jaw.
• The bone between the eyes.
• The sphenoid or frontal sinuses.

and cancer may also have spread to one or more lymph nodes 6 centimeters or smaller, anywhere in the neck.

Stage IVB

In stage IVB, cancer has spread to any of the following:

• The back of the eye.
• The brain.
• The middle parts of the skull.
• The nerves in the head that go to the brain.
• The upper part of the throat behind the nose.
• The base of the skull.

and cancer may be found in one or more lymph nodes of any size, anywhere in the neck.

or

Cancer is found in a lymph node larger than 6 centimeters. Cancer may also be found anywhere in or near the maxillary sinus.

Stage IVC

In stage IVC, cancer may be anywhere in or near the maxillary sinus, may have spread to lymph nodes, and has spread to organs far away from the maxillary sinus, such as the lungs.

The following stages are used for nasal cavity and ethmoid sinus cancer:

Stage 0 (Carcinoma in Situ)

In stage 0, abnormal cells are found in the innermost lining of the nasal cavity or ethmoid sinus. These abnormal cells may become cancer and spread into nearby normal tissue. Stage 0 is also called carcinoma in situ.

Stage I

In stage I, cancer has formed and is found in only one area (of either the nasal cavity or the ethmoid sinus) and may have spread into bone.

Stage II

In stage II, cancer is found in two areas (of either the nasal cavity or the ethmoid sinus) that are near each other or has spread to an area next to the sinuses. Cancer may also have spread into bone.

Stage III

In stage III, cancer has spread to any of the following:

• The eye socket.
• The maxillary sinus.
• The roof of the mouth.
• The bone between the eyes.

or

Cancer has spread to one lymph node on the same side of the neck as the cancer and the lymph node is 3 centimeters or smaller. Cancer has also spread to any of the following:

• The nasal cavity.
• The ethmoid sinus.
• The eye socket.
• The maxillary sinus.
• The roof of the mouth.
• The bone between the eyes.

Stage IV

Stage IV is divided into stage IVA, IVB, and IVC.

Stage IVA

In stage IVA, cancer has spread either:

• to one lymph node on the same side of the neck as the cancer and the lymph node is larger than 3 centimeters but not larger than 6 centimeters; or
• to more than one lymph node anywhere in the neck, and they are all 6 centimeters or smaller;

and cancer has spread to any of the following:

• The nasal cavity.
• The ethmoid sinus.
• The eye socket.
• The maxillary sinus.
• The roof of the mouth.
• The bone between the eyes.

or

Cancer has spread to any of the following:

• The front of the eye.
• The skin of the nose or cheek.
• Front parts of the skull.
• The base of the skull.
• The sphenoid or frontal sinuses.

and cancer may have spread to one or more lymph nodes 6 centimeters or smaller, anywhere in the neck.

Stage IVB

In stage IVB, cancer has spread to any of the following:

• The back of the eye.
• The brain.
• The middle parts of the skull.
• The nerves in the head that go to the brain.
• The upper part of the throat behind the nose.
• The base of the skull.

and cancer may be found in one or more lymph nodes of any size, anywhere in the neck.

or

Cancer is found in a lymph node larger than 6 centimeters. Cancer may also be found anywhere in or near the nasal cavity and ethmoid sinus.

Stage IVC

In stage IVC, cancer may be anywhere in or near the nasal cavity and ethmoid sinus, may have spread to lymph nodes, and has spread to organs far away from the nasal cavity and ethmoid sinus, such as the lungs.

Recurrent Paranasal Sinus and Nasal Cavity Cancer

Recurrent paranasal sinus and nasal cavity cancer is cancer that has recurred (come back) after it has been treated. The cancer may come back in the paranasal sinuses and nasal cavity or in other parts of the body.

Treatment Option Overview

Key Points for This Section

There are different types of treatment for patients with paranasal sinus and nasal cavity cancer. Patients with paranasal sinus and nasal cavity cancer should have their treatment planned by a team of doctors with expertise in treating head and neck cancer. Three types of standard treatment are used: Surgery Radiation therapy Chemotherapy New types of treatment are being tested in clinical trials. Patients may want to think about taking part in a clinical trial. Patients can enter clinical trials before, during, or after starting their cancer treatment. Follow-up tests may be needed.

There are different types of treatment for patients with paranasal sinus and nasal cavity cancer.

Different types of treatment are available for patients with paranasal sinus and nasal cavity cancer. 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.

Patients with paranasal sinus and nasal cavity cancer should have their treatment planned by a team of doctors with expertise in treating head and neck cancer.

Treatment will be overseen by a medical oncologist, a doctor who specializes in treating people with cancer. The medical oncologist works with other doctors who are experts in treating patients with head and neck cancer and who specialize in certain areas of medicine and rehabilitation. Patients who have paranasal sinus and nasal cavity cancer may need special help adjusting to breathing problems or other side effects of the cancer and its treatment. If a large amount of tissue or bone around the paranasal sinuses or nasal cavity is taken out, plastic surgery may be done to repair or rebuild the area. The treatment team may include the following specialists:

• Radiation oncologist.
• Neurologist.
• Oral surgeon or head and neck surgeon.
• Plastic surgeon.
• Dentist.
• Nutritionist.
• Speech and language pathologist.
• Rehabilitation specialist.

Three types of standard treatment are used:

Surgery

Surgery (removing the cancer in an operation) is a common treatment for all stages of paranasal sinus and nasal cavity cancer. A doctor may remove the cancer and some of the healthy tissue and bone around the cancer. If the cancer has spread, the doctor may remove lymph nodes and other tissues in the neck.

Even if the doctor removes all the cancer that can be seen at the time of the surgery, some patients may be given chemotherapy or radiation therapy after surgery to kill any cancer cells that are left. Treatment given after surgery, to increase the chances of a cure, is called adjuvant therapy.

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. The total dose of radiation therapy is sometimes divided into several smaller, equal doses delivered over a period of several days. This is called fractionation. 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.

External radiation therapy to the thyroid or the pituitary gland may change the way the thyroid gland works. The thyroid gland may be tested before and after treatment.

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). Combination chemotherapy is treatment using more than one anticancer drug.

The way the chemotherapy is given depends on the type and stage of the cancer being treated.

New types of treatment are being tested in clinical trials.

Information about clinical trials is available from the NCI Web site ¹.

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 by Stage

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.

Treatment of stage I paranasal sinus and nasal cavity cancer depends on where cancer is found in the paranasal sinuses and nasal cavity:

• If cancer is in the maxillary sinus, treatment is usually surgery with or without radiation therapy.
• If cancer is in the ethmoid sinus, treatment is usually radiation therapy and/or surgery.
• If cancer is in the sphenoid sinus, treatment is the same as for nasopharyngeal cancer, usually radiation therapy. (See the PDQ summary on Nasopharyngeal Cancer Treatment ² for more information.)
• If cancer is in the nasal cavity, treatment is usually surgery and/or radiation therapy.
• If cancer is in the nasal vestibule, treatment is usually surgery or radiation therapy.
• For inverting papilloma, treatment is usually surgery with or without radiation therapy.
• For melanoma and sarcoma, treatment is usually surgery with or without radiation therapy and chemotherapy.
• For midline granuloma, treatment is usually radiation therapy.

Check for U.S. clinical trials from NCI's PDQ Cancer Clinical Trials Registry that are now accepting patients with stage I paranasal sinus and nasal cavity cancer ³. For more specific results, refine the search by using other search features, such as the location of the trial, the type of treatment, or the name of the drug. General information about clinical trials is available from the NCI Web site ⁴.

Treatment of stage II paranasal sinus and nasal cavity cancer depends on where cancer is found in the paranasal sinuses and nasal cavity:

• If cancer is in the maxillary sinus, treatment is usually high-dose radiation therapy before or after surgery.
• If cancer is in the ethmoid sinus, treatment is usually radiation therapy and/or surgery.
• If cancer is in the sphenoid sinus, treatment is the same as for nasopharyngeal cancer, usually radiation therapy with or without chemotherapy. (See the PDQ summary on Nasopharyngeal Cancer Treatment ² for more information.)
• If cancer is in the nasal cavity, treatment is usually surgery and/or radiation therapy.
• If cancer is in the nasal vestibule, treatment is usually surgery or radiation therapy.
• For inverting papilloma, treatment is usually surgery with or without radiation therapy.
• For melanoma and sarcoma, treatment is usually surgery with or without radiation therapy and chemotherapy.
• For midline granuloma, treatment is usually radiation therapy.

Check for U.S. clinical trials from NCI's PDQ Cancer Clinical Trials Registry that are now accepting patients with stage II paranasal sinus and nasal cavity cancer ⁵. For more specific results, refine the search by using other search features, such as the location of the trial, the type of treatment, or the name of the drug. General information about clinical trials is available from the NCI Web site ⁴.

Treatment of stage III paranasal sinus and nasal cavity cancer depends on where cancer is found in the paranasal sinuses and nasal cavity.

If cancer is in the maxillary sinus, treatment may include the following:

• High-dose radiation therapy before or after surgery.
• A clinical trial of fractionated radiation therapy before or after surgery.

If cancer is in the ethmoid sinus, treatment may include the following:

• Surgery followed by radiation therapy.
• A clinical trial of combination chemotherapy before surgery or radiation therapy.
• A clinical trial of combination chemotherapy after surgery or other cancer treatment.

If cancer is in the sphenoid sinus, treatment is the same as for nasopharyngeal cancer, usually radiation therapy with or without chemotherapy. (See the PDQ summary on Nasopharyngeal Cancer Treatment ² for more information.)

If cancer is in the nasal cavity, treatment may include the following:

• Surgery and/or radiation therapy.
• Chemotherapy and radiation therapy.
• A clinical trial of combination chemotherapy before surgery or radiation therapy.
• A clinical trial of combination chemotherapy after surgery or other cancer treatment.

For inverting papilloma, treatment is usually surgery with or without radiation therapy.

For melanoma and sarcoma, treatment may include the following:

• Surgery.
• Radiation therapy.
• Surgery, radiation therapy, and chemotherapy.

For midline granuloma, treatment is usually radiation therapy.

If cancer is in the nasal vestibule, treatment may include the following:

• External radiation therapy and/or internal radiation therapy with or without surgery.
• A clinical trial of combination chemotherapy before surgery or radiation therapy.
• A clinical trial of combination chemotherapy after surgery or other cancer treatment.

Check for U.S. clinical trials from NCI's PDQ Cancer Clinical Trials Registry that are now accepting patients with stage III paranasal sinus and nasal cavity cancer ⁶. For more specific results, refine the search by using other search features, such as the location of the trial, the type of treatment, or the name of the drug. General information about clinical trials is available from the NCI Web site ⁴.

Treatment of stage IV paranasal sinus and nasal cavity cancer depends on where cancer is found in the paranasal sinuses and nasal cavity.

If cancer is in the maxillary sinus, treatment may include the following:

• High-dose radiation therapy with or without surgery.
• A clinical trial of fractionated radiation therapy.
• A clinical trial of chemotherapy before surgery or radiation therapy.
• A clinical trial of chemotherapy after surgery or other cancer treatment.
• A clinical trial of chemotherapy and radiation therapy.

If cancer is in the ethmoid sinus, treatment may include the following:

• Radiation therapy before or after surgery.
• Chemotherapy and radiation therapy.
• A clinical trial of chemotherapy before surgery or radiation therapy.
• A clinical trial of chemotherapy after surgery or other cancer treatment.
• A clinical trial of chemotherapy and radiation therapy.

If cancer is in the sphenoid sinus, treatment is the same as for nasopharyngeal cancer, usually radiation therapy with or without chemotherapy. (See the PDQ summary on Nasopharyngeal Cancer Treatment ² for more information.)

If cancer is in the nasal cavity, treatment may include the following:

• Surgery and/or radiation therapy.
• Chemotherapy and radiation therapy.
• A clinical trial of chemotherapy before surgery or radiation therapy.
• A clinical trial of chemotherapy after surgery or other cancer treatment.
• A clinical trial of chemotherapy and radiation therapy.

For inverting papilloma, treatment is usually surgery with or without radiation therapy.

For melanoma and sarcoma, treatment may include the following:

• Surgery.
• Radiation therapy.
• Chemotherapy.

For midline granuloma, treatment is usually radiation therapy.

If cancer is in the nasal vestibule, treatment may include the following:

• External radiation therapy and/or internal radiation therapy with or without surgery.
• A clinical trial of chemotherapy before surgery or radiation therapy.
• A clinical trial of chemotherapy after surgery or other cancer treatment.
• A clinical trial of chemotherapy and radiation therapy.

Check for U.S. clinical trials from NCI's PDQ Cancer Clinical Trials Registry that are now accepting patients with stage IV paranasal sinus and nasal cavity cancer ⁷. For more specific results, refine the search by using other search features, such as the location of the trial, the type of treatment, or the name of the drug. General information about clinical trials is available from the NCI Web site ⁴.

Treatment Options for Recurrent Paranasal Sinus and Nasal Cavity Cancer

Treatment of recurrent paranasal sinus and nasal cavity cancer depends on where cancer is found in the paranasal sinuses and nasal cavity.

If cancer is in the maxillary sinus, treatment may include the following:

• Surgery followed by radiation therapy.
• Radiation therapy followed by surgery.
• Chemotherapy as palliative therapy to relieve symptoms and improve the quality of life.
• A clinical trial of chemotherapy.

If cancer is in the ethmoid sinus, treatment may include the following:

• Surgery and/or radiation therapy.
• Chemotherapy as palliative therapy to relieve symptoms and improve the quality of life.
• A clinical trial of chemotherapy.

If cancer is in the sphenoid sinus, treatment is the same as for nasopharyngeal cancer and may include radiation therapy with or without chemotherapy. (See the PDQ summary on Nasopharyngeal Cancer Treatment ² for more information.)

If cancer is in the nasal cavity, treatment may include the following:

• Surgery and/or radiation therapy.
• Chemotherapy as palliative therapy to relieve symptoms and improve the quality of life.
• A clinical trial of chemotherapy.

For inverting papilloma, treatment is usually surgery with or without radiation therapy.

For melanoma and sarcoma, treatment may include the following:

• Surgery.
• Chemotherapy as palliative therapy to relieve symptoms and improve the quality of life.

For midline granuloma, treatment is usually radiation therapy.

If cancer is in the nasal vestibule, treatment may include the following:

• Surgery and/or radiation therapy.
• Chemotherapy as palliative therapy to relieve symptoms and improve the quality of life.
• A clinical trial of chemotherapy.

Check for U.S. clinical trials from NCI's PDQ Cancer Clinical Trials Registry that are now accepting patients with recurrent paranasal sinus and nasal cavity cancer ⁸. For more specific results, refine the search by using other search features, such as the location of the trial, the type of treatment, or the name of the drug. General information about clinical trials is available from the NCI Web site ⁴.

To Learn More About Paranasal Sinus and Nasal Cavity Cancer

For more information from the National Cancer Institute about paranasal sinus and nasal cavity cancer, see the following:

• Head and Neck Cancer Home Page ⁹
• Smoking and Cancer Home Page ¹⁰ (Includes help with quitting)
• Head and Neck Cancer: Questions and Answers ¹¹

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

• What You Need to Know About™ Cancer - An Overview ¹²
• Understanding Cancer Series: Cancer ¹³
• Staging: Questions and Answers ¹⁴
• Chemotherapy and You: Support for People With Cancer ¹⁵
• Radiation Therapy and You: Support for People With Cancer ¹⁶
• Coping with Cancer ¹⁷
• Support and Resources ¹⁸
• Cancer Library ¹⁹
• Information For Survivors/Caregivers/Advocates ²⁰

Get More Information From NCI

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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 (06/18/2008)

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.

Several enhancements have been made to this summary to better explain certain medical concepts and to help readers find information about clinical trials. The following changes were made:

• Text describing the way cancer spreads in the body was added to the Stages ²⁴ section.
• Information about patients taking part in clinical trials and about follow-up tests was added to the Treatment Option Overview ²⁵ section.
• Links to ongoing clinical trials listed in NCI's PDQ Cancer Clinical Trials Registry were added to the Treatment Options ²⁶ section.
• A new section called "To Learn More ²⁷" was added. It includes links to more information about this type of cancer and about cancer in general.
• The "Get More Information from NCI" section (originally called "To Learn More") was revised.

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 ²⁸. 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

The area of the body that contains the pancreas, stomach, intestines, liver, gallbladder, and other organs.

Not normal. An abnormal lesion or growth may be cancer, premalignant (likely to become cancer), or benign (not cancer).

Treatment given after the primary treatment to increase the chances of a cure. Adjuvant therapy may include chemotherapy, radiation therapy, hormone therapy, or biological therapy.

A noncancerous growth that does not invade nearby tissue or spread to other parts of the body.

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.

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.

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).

A technique to create images of bones on a computer screen or on film. A small amount of radioactive material is injected into a blood vessel and travels through the bloodstream; it collects in the bones and is detected by a scanner.

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.

A term for diseases in which abnormal cells divide without control and can invade nearby tissues. Cancer cells can also 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.

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.

A group of abnormal cells that remain in the place where they first formed. They have not spread. These abnormal cells may become cancer and spread into nearby normal tissue. Also called stage 0 disease.

A flexible tube used to deliver fluids into or withdraw fluids from the body.

A hollow area or hole. It may describe a body cavity (such as the space within the abdomen) or a hole in a tooth caused by decay.

The individual unit that makes up the tissues of the body. All living things are made up of one or more cells.

A measure of length in the metric system. There are 100 centimeters in a meter and 2½ centimeters in an inch.

Treatment with drugs that kill cancer cells.

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 clinical study.

Treatment using more than one anticancer drug.

Supporting tissue that surrounds other tissues and organs. Specialized connective tissue includes bone, cartilage, blood, and fat.

A dye or other substance that helps show abnormal areas inside the body. It is given by injection into a vein, by enema, or by mouth. Contrast material may be used with x-rays, CT scans, MRI, or other imaging tests.

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 CAT scan, computed tomography scan, computerized axial tomography scan, and computerized tomography.

To heal or restore health; a treatment to restore health.

A health professional who specializes in caring for the teeth, gums, and other tissues in the mouth.

The process of identifying a disease, such as cancer, from its signs and symptoms.

The amount of medicine taken, or radiation given, at one time.

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.

A thin, tube-like instrument used to look at tissues inside the body. An endoscope has a light and a lens for viewing and may have a tool to remove tissue.

A procedure that uses an endoscope to examine the inside of the body. An endoscope is a thin, tube-like instrument with a light and a lens for viewing. It may also have a tool to remove tissue to be checked under a microscope for signs of disease.

A type of paranasal sinus (a hollow space in the bones around the nose). Ethmoid sinuses are found in the spongy ethmoid bone in the upper part of the nose between the eyes. They are lined with cells that make mucus to keep the nose from drying out.

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.

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.

Dividing the total dose of radiation therapy into several smaller, equal doses delivered over a period of several days.

A type of paranasal sinus (a hollow space in the bones around the nose). There are two, large frontal sinuses in the frontal bone, which forms the lower part of the forehead and reaches over the eye sockets and eyebrows. The frontal sinuses are lined with cells that make mucus to keep the nose from drying out.

Cancer that arises in the head or neck region (in the nasal cavity, sinuses, lips, mouth, salivary glands, throat, or larynx [voice box]).

An amount of radiation that is greater than that given in typical radiation therapy. High-dose radiation is precisely directed at the tumor to avoid damaging healthy tissue, and may kill more cancer cells in fewer treatments. Also called HDR.

Use of a syringe and needle to push fluids or drugs into the body; often called a "shot."

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, implant radiation therapy, and radiation brachytherapy.

Cancer that has spread beyond the layer of tissue in which it developed and is growing into surrounding, healthy tissues. Also called infiltrating cancer.

A type of tumor in which surface epithelial cells grow downward into the underlying supportive tissue. It may occur in the nose and/or sinuses or in the urinary tract (bladder, renal pelvis, ureter, urethra). When it occurs in the nose or sinuses, it may cause symptoms similar to those caused by sinusitis, such as nasal congestion. When it occurs in the urinary tract, it may cause blood in the urine.

One of a pair of organs in the chest that supplies the body with oxygen, and removes carbon dioxide from the body.

The clear fluid that travels through the lymphatic system and carries cells that help fight infections and other diseases. Also called lymphatic fluid.

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.

A thin tube that carries lymph (lymphatic fluid) and white blood cells through the lymphatic system. Also called lymphatic vessel.

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.

A type of paranasal sinus (a hollow space in the bones around the nose). There are two large maxillary sinuses, one in each of the maxillary bones, which are in the cheek area next to the nose. The maxillary sinuses are lined with cells that make mucus to keep the nose from drying out.

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.

A cell in the skin and eyes that produces and contains the pigment called melanin.

A form of cancer that begins in melanocytes (cells that make the pigment melanin). It may begin in a mole (skin melanoma), but can also begin in other pigmented tissues, such as in the eye or in the intestines.

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).

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, NMRI, and nuclear magnetic resonance imaging.

The moist, inner lining of some organs and body cavities (such as the nose, mouth, lungs, and stomach). Glands in the mucous membrane make mucus (a thick, slippery fluid). Also called mucosa.

A thick, slippery fluid made by the membranes that line certain organs of the body, including the nose, mouth, throat, and vagina.

By or having to do with the nose.

Cancer that forms in tissues of the nasopharynx (upper part of the throat behind the nose). Most nasopharyngeal cancers are squamous cell carcinomas (cancer that begins in flat cells lining the nasopharynx).

A thin tube-like instrument used to examine the inside of the nose. A nasoscope has a light and a lens for viewing and may have a tool to remove tissue. Also called rhinoscope.

Examination of the inside of the nose using a nasoscope (or rhinoscope). A nasoscope is a thin, tube-like instrument with a light and a lens for viewing. It may also have a tool to remove tissue to be checked under a microscope for signs of disease. Also called rhinoscopy.

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, 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.

A bundle of fibers that receives and sends messages between the body and the brain. The messages are sent by chemical and electrical changes in the cells that make up the nerves.

A doctor who specializes in the diagnosis and treatment of disorders of the nervous system.

A health professional with special training in nutrition who can help with dietary choices. Also called dietitian.

A dentist with special training in surgery of the mouth and jaw.

A part of the body that performs a specific function. For example, the heart is an organ.

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.

One of many small hollow spaces in the bones around the nose. Paranasal sinuses are named after the bones that contain them: frontal (the lower forehead), maxillary (cheekbones), ethmoid (beside the upper nose), and sphenoid (behind the nose). The paranasal sinuses open into the nasal cavity (space inside the nose) and are lined with cells that make mucus to keep the nose from drying out during breathing.

Cancer that forms in tissues of the paranasal sinuses (small hollow spaces in the bones around the nose) or nasal cavity (the inside of the nose). The most common type of paranasal sinus and nasal cavity cancer is squamous cell carcinoma (cancer that begins in flat cells lining these tissues and cavities).

A doctor who identifies diseases by studying cells and tissues under a microscope.

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.

An exam of the body to check for general signs of disease.

The main endocrine gland. It produces hormones that control other glands and many body functions, especially growth.

A surgeon who specializes in reducing scarring or disfigurement that may occur as a result of accidents, birth defects, or treatment for diseases.

An operation that restores or improves the appearance of body structures.

The original tumor.

The likely outcome or course of a disease; the chance of recovery or recurrence.

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.

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).

A doctor who specializes in using radiation to treat cancer.

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 irradiation and radiotherapy.

Giving off radiation.

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.

To come back or to return.

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.

Treatment with anticancer drugs directed to a specific area of the body.

In medicine, a process to restore mental and/or physical abilities lost to injury or disease, in order to function in a normal or near-normal way.

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.

The organs that are involved in breathing. These include the nose, throat, larynx, trachea, bronchi, and lungs. Also called respiratory tract.

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.

A cancer of the bone, cartilage, fat, muscle, blood vessels, or other connective or supportive tissue.

In medicine, an instrument that takes pictures of the inside of the body.

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.

A specialist who evaluates and treats people with communication and swallowing problems. Also called speech therapist.

A type of paranasal sinus (a hollow space in the bones around the nose). There are two large sphenoid sinuses in the sphenoid bone, which is behind the nose between the eyes. The sphenoid sinuses are lined with cells that make mucus to keep the nose from drying out.

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 backbone, spine, and vertebral column.

Flat cell that looks like a fish scale under a microscope. These cells cover inside and outside surfaces of the body. They are found in the tissues that form the surface of the skin, the lining of the hollow organs of the body (such as the bladder, kidney, and uterus), and the passages of the respiratory and digestive tracts.

Cancer that begins in squamous cells, which are thin, flat cells that look like fish scales. Squamous cells are found in the tissue that forms the surface of the skin, the lining of the hollow organs of the body, and the passages of the respiratory and digestive tracts. Also called epidermoid carcinoma.

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.

Abnormal cells are found in the innermost lining of the maxillary sinus. These abnormal cells may become cancer and spread into nearby normal tissue.

Abnormal cells are found in the innermost lining of the nasal cavity or ethmoid sinus. These abnormal cells may become cancer and spread into nearby normal tissue.

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.

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 best practice and standard of care.

A doctor who removes or repairs a part of the body by operating on the patient.

A procedure to remove or repair a part of the body or to find out whether disease is present. An operation.

An indication that a person has a condition or disease. Some examples of symptoms are headache, fever, fatigue, nausea, vomiting, and pain.

Treatment with anticancer drugs that travel through the blood to cells all over the body.

Treatment.

The hollow tube inside the neck that starts behind the nose and ends at the top of the trachea (windpipe) and esophagus (the tube that goes to the stomach). The throat is about 5 inches long, depending on body size. Also called pharynx.

A gland located beneath the voice box (larynx) that produces thyroid hormone. The thyroid helps regulate growth and metabolism.

A group or layer of cells that work together to perform a specific function.

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 cancer), or malignant (cancer). Also called neoplasm.

A blood vessel that carries blood to the heart from tissues and organs in the body.

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.