Leiomiosarcoma superficial originado en el frenillo del pene

Primary leiomyosarcomas of the penis are very rare with less than 50 cases reported worldwide. They mainly involve body or base, less frequently prepuce. There is a unique case arising in the frenulum, we describe the second case in a 61-year-old male. The origin, prognostic factors and differential diagnosis are discussed in this paper.