[Pseudo-Kaposi sarcoma in Prader-Labhart-Willi syndrome].

A 25-year-old male patient presenting with Prader-Labhart-Willi syndrome is reported. He had sought medical help because of lichenoid skin eruptions on his lower legs. Histologically the lesions turned out to be pseudo-Kaposi's sarcoma. The possible aetiopathologic relationship between the two primarily unassociated conditions is discussed.