Kaposi's sarcoma

n. KS, form of vascular cancer that causes purplish red patches on the skin and usually on the feet and legs (occurs mainly as a result of Aids)

Kaposi's sarcoma (KS) is a tumor caused by Human herpesvirus 8 (HHV8), also known as Kaposi's sarcoma-associated herpesvirus (KSHV). It was originally described by Moritz Kaposi, an Austro-Hungarian dermatologist practicing at the University of Vienna in 1872. It became more widely known as one of the AIDS defining illnesses in the 1980s.
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Noun
1. 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; "until 1980 Kaposi's sarcoma occurred almost exclusively with Jewish or Italian or black men"
(hypernym) sarcoma

A relatively rare type of cancer that develops on the skin of some elderly persons or those with a weak immune system, including those with acquired immune deficiency syndrome (AIDS).

[KAP-o-seez sar-KO-ma]
A type of cancer characterized by the abnormal growth of blood vessels that develop into skin lesions or occur internally.