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Kaposi's sarcoma is a cancer that causes patches of abnormal tissue to grow under the skin, in the lining of the mouth, nose, and throat or in other organs. The patches are usually red or purple and are made of cancer cells and blood cells. The red and purple patches often cause no symptoms, though they may be painful. If the cancer spreads to the digestive tract or lungs, bleeding can result. Lung tumors can make breathing hard.
Before the HIV/AIDS epidemic, KS usually developed slowly. In HIV/AIDS patients, though, the disease moves quickly. Treatment depends on where the lesions are and how bad they are. Treatment for HIV itself can shrink the lesions. However, treating KS does not improve survival from HIV/AIDS itself.
NIH: National Cancer Institute
Prevention and Risk Factors
- Can Kaposi Sarcoma Be Prevented? (American Cancer Society)
- Do We Know What Causes Kaposi Sarcoma? (American Cancer Society)
- What Should You Ask Your Doctor about Kaposi Sarcoma? (American Cancer Society)
- Purplish Lesions of Kaposi's Sarcoma (National Institutes of Health)
Statistics and Research
- What Are the Key Statistics about Kaposi Sarcoma? (American Cancer Society)
- What's New in Kaposi Sarcoma Research and Treatment? (American Cancer Society)
- ClinicalTrials.gov: Sarcoma, Kaposi (National Institutes of Health)