kaposi sarcoma What Is Kaposi sarcoma? Kaposi sarcoma (KS) is a cancer that develops from the cells that line lymph or blood vessels. The abnormal cells of KS form purple, red, or brown blotches or tumors on the skin. These affected areas are called lesions. The skin lesions of KS may look bad, but in many cases, the lesions cause no symptoms. In other cases, the disease causes painful swelling, especially in .. 2012. 9. 13. 이전 1 다음