Pseudo-Kaposi sarcoma induced by minor trauma in a patient with Klippel-Trenaunay-Weber syndrome

Summary Arteriovenous malformations (AVM) are vascular anomalies containing a communication between an artery and a vein without an intervening capillary bed. 1 In 1990, Klippel and Trenaunay reported a patient with limb overgrowth, cutaneous angiomata and varicose veins. 2 In 1918, Parkes Weber mentioned the additional feature of AVM terming the condition‘hemangiectatic hypertrophy. 3 Most authors now consider both the Klippel Trenaunay syndrome and the syndrome of multiple congenital arteriovenous fistulae to be two forms of Parkes Weber's hemangiectatic hypertrophy. 4 Clinical and histological‘Kaposi sarcoma'‐like lesions in the Klippel–Trenauny–Weber syndrome are well documented. 5,6 We report an additional case appearing after minor trauma.