title: Radiological case of the month. Bladder neck contracture: primary vs secondary disease.
mesh_terms: D000293:Adolescent; D003251:Constriction, Pathologic; D006801:Humans; D006984:Hypertrophy; D008297:Male; D011859:Radiography; D001743:Urinary Bladder / Q000473:pathology; D001748:Urinary Bladder Neck Obstruction / Q000000981:diagnostic imaging*