| Noun | 1. | Kaposi's sarcoma - 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" sarcoma - a usually malignant tumor arising from connective tissue (bone or muscle etc.); one of the four major types of cancer |