Calculus in the prostatic utricle.
D000328:Adult; D002137:Calculi / Q000601:surgery; D003558:Cystoscopy; D006801:Humans; D008297:Male; D008875:Middle Aged; D011469:Prostatic Diseases / Q000000981:diagnostic imaging* / Q000601:surgery; D011859:Radiography; D014545:Urinary Calculi / Q000000981:diagnostic imaging*