A Case of Extensive Classic Kaposi' s Sarcoma Showing Good Response to Radiotherapy / 대한피부과학회지

ABSTRACT

We report a case of classic Kaposis sarcoma(KS) in a 74-year-old man who had asymptomatic red-dish-blue or dark-brown macules, papules and nodules on his bo hower extrimities. The biopsy specimen showed typical histopathologic features of FS including a highly vascularized lesion with a proliferation of spindle-shaped cells accompanied by etravasated erythrocytes and variable number of inflammatery cells. Many of the spindle-shaped cells associated with the proliferating vessels in KS lesion expressed factor VIII-related antigen. He was treated with 1500 cGy of radiation(300 cGy per day for 5 successive day. Four weeks after radiotherpy, gross and histopathologic findings were mucl improved and healed leaving hyperpigmentation.