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Kaposi's sarcoma on the thigh

Kaposi's sarcoma on the thigh

Overview

Kaposi's sarcoma, seen here on the thigh, was once a rare malignancy of the blood vessels, but is now associated with AIDS. It is more frequently associated with AIDS in homosexual men than AIDS in IV drug users. The malignancy results in purplish to reddish-purple grape-like lesions in the skin, gastrointestinal tract, and other organs.

Update Date 5/1/2015

Updated by: Jatin M. Vyas, MD, PhD, Assistant Professor in Medicine, Harvard Medical School; Assistant in Medicine, Division of Infectious Disease, Department of Medicine, Massachusetts General Hospital, Boston, MA. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.