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Kaposi Sarcoma (AIDS-Associated)

Kaposi sarcoma is a vascular tumor caused by herpesvirus type 8 infection. AIDS-associated Kaposi syndrome is an aggressive, multicentric tumor that may involve the face, trunk, mucosal surfaces, lymphatics, or GI tract. Lesions appear as bluish to violaceous macules, plaques, or tumors.

Image courtesy of Sol Silverman, Jr., via the Public Health Image Library of the Centers for Disease Control and Prevention.