A Case of Zosteriform Kaposi Kaposi`s Sarcoma

Abstract

Kaposi’s sarcoma is a neoplastic, vascular tumor involving the skin or internal organs. We report a case of a 72- year-old male who presented with multiple, grouped, purpuric papules, hemorrhagic bullae and nodules showing zosteriform distribution on the sole of his right foot. In our case, as in some of the cases from the literature, the patient was initially misdiagnosed clinically as having herpes zoster. Histopathologic findings revealed a diffuse infiltrate of small blood vessels and slit-like spaces extending through most of the dermis. Many of the spindle- shaped cells expressed factor VIII-related antigen, and human herpes virus 8 (HHV-8) DNA was detected by polymerase chain reaction (PCR) in paraffin-embedded tissue.