title: Primary malignant melanoma of male urethra.
mesh_terms: D000328:Adult; D000368:Aged; D006801:Humans; D008297:Male; D008545:Melanoma / Q000473:pathology / Q000601:surgery*; D008875:Middle Aged; D014523:Urethral Neoplasms / Q000473:pathology / Q000601:surgery*