title: Malignant melanoma of the male urethra.
mesh_terms: D000368:Aged; D006801:Humans; D008297:Male; D008545:Melanoma / Q000000981:diagnostic imaging*; D009362:Neoplasm Metastasis; D011859:Radiography; D014523:Urethral Neoplasms / Q000000981:diagnostic imaging*