Description:
A type of
          cancer in which lesions (abnormal areas) grow in the skin,
          lymph nodes, lining of the mouth, nose, and throat, and
          other tissues of the body. The lesions are usually purple
          and are made of cancer cells, new blood vessels, and blood
          cells. They may begin in more than one place in the body at
          the same time. Kaposi sarcoma is caused by Kaposi
          sarcoma-associated herpesvirus (KSHV). In the United
          States, it usually occurs in people who have a weak immune
          system caused by AIDS or by drugs used in organ
          transplants. It is also seen in older men of Jewish or
          Mediterranean descent, or in young men in
          Africa.


