Pseudo-Kaposi's sarcoma of the hand associated with an acquired, iatrogenic arteriovenous fistula.
Pseudo-Kaposi's sarcoma has been associated, in most cases, with an underlying congenital arteriovenous (AV) fistula. A patient with chronic renal failure and an acquired, iatrogenic AV fistula in his left wrist for hemodialysis developed pseudo-Kaposi's sarcoma on his left hand three years after placement of the AV fistula. Histologic findings included a proliferation of superficial dermal vessels and fibroblasts, extravasated red blood cells, and occasional fibrin thrombi in vessels. To our knowledge, this is the third case of an association between pseudo-Kaposi's sarcoma and an acquired, iatrogenic AV fistula, and the first to involve the hand. Pseudo-Kaposi's sarcoma occurs in association with underlying congenital and acquired AV fistulas.
D000328:Adult; D001166:Arteriovenous Shunt, Surgical / Q000009:adverse effects*; D006225:Hand; D006801:Humans; D008297:Male; D012514:Sarcoma, Kaposi / Q000209:etiology* / Q000473:pathology; D012867:Skin / Q000098:blood supply / Q000473:pathology*; D012878:Skin Neoplasms / Q000209:etiology* / Q000473:pathology