Kaposi's sarcoma

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A cancer characterized by numerous bluish-red nodules on the skin, usually on the lower extremities, that is endemic to equatorial Africa and often occurs in a particularly virulent form in people with AIDS.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A tumour caused by human herpesvirus 8 (HHV8).

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a sarcoma that starts with purplish spots on the feet and legs and spreads from the skin to lymph nodes and internal organs; a common manifestation of AIDS