There is a type of nonepidemic Kaposi sarcoma that develops in homosexual men who have no signs or symptoms of HIV infection. This type of Kaposi sarcoma progresses slowly, with new lesions appearing every few years. The lesions are most common on the arms, legs, and genitals, but can develop anywhere on the skin.

This type of Kaposi sarcoma is rare and treatment information is not included in this summary.

Glossary Terms

The cause of acquired immunodeficiency syndrome (AIDS). Also called human immunodeficiency virus.

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.

A type of cancer characterized by the abnormal growth of blood vessels that develop into skin lesions or occur internally.

An area of abnormal tissue. A lesion may be benign (not cancer) or malignant (cancer).

In medicine, the course of a disease, such as cancer, as it becomes worse or spreads in the body.

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