title: Case profile: radiolucent urethral calculus with hemostatic clip nidus.
mesh_terms: D005547:Foreign Bodies; D006488:Hemostasis, Surgical / Q000295:instrumentation*; D006801:Humans; D008297:Male; D008875:Middle Aged; D014521:Urethra; D014522:Urethral Diseases / Q000209:etiology*; D014545:Urinary Calculi / Q000209:etiology*