Kaposi 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 12/1/2018
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, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.