Kaposi's sarcoma (KS)

Malignant skin cancer. Appear first as pink, purple or brown lesions (wounds), usually on arms and/or legs; then spreading around body. In AIDS patients, may spread to gastrointestinal tract, lungs, other internal organs. Initially occurred in 46% of homosexual AIDS patients, in only 3.8% of heterosexual IV drug abuser AIDS patients. Onset is statistically associated, in homosexual males, with oral-anal sex and fecal (feces) contact-possible infectious agent involved.