The 'dumb-bell' vesicouretheral calculus in childhood.
D000293:Adolescent; D002675:Child, Preschool; D006801:Humans; D008297:Male; D011859:Radiography; D014522:Urethral Diseases / Q000175:diagnosis* / Q000000981:diagnostic imaging; D001744:Urinary Bladder Calculi / Q000175:diagnosis* / Q000000981:diagnostic imaging; D014545:Urinary Calculi / Q000175:diagnosis*