Kaposi's sarcoma usually occurs in male homosexuals with AIDS. These lesions can appear anywhere on the body as purple, elevated growths. This sarcoma is located near the anus (perianal).
Review 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.