[Pseudo-Kaposi sarcoma].

Case report about a 45 year old man with hyperkeratotic papules and plaques on both lower legs now persisting for more than 20 years. After detection of arterio-venous shunts the initial clinical and histological diagnosis of Kaposi-sarcoma had to be replaced by the diagnosis of pseudo-Kaposi's sarcoma, a benign reactive process. In the pathogenesis of this disease arteriovenous shunts are of great importance.