[Thrombosis of the deep penile venous system in a patient with a malignant disease].

Thrombosis of the deep penile venous system is extremely rare and must be clearly distinguished from superficial thrombosis because it may cause serious clinical complications. We present a 76-year-old man with thrombosis of the vena dorsalis penis profunda three months after being diagnosed with disse-m--inated non-small cell lung cancer. Total remission of the thrombosis was achieved with daily subcutaneous injections with heparin for four weeks.