title: Congenital urethral membranes causing urethral obstruction.
mesh_terms: D001344:Autopsy; D002648:Child; D002675:Child, Preschool; D005260:Female; D005336:Fiber Optic Technology; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D008566:Membranes; D014521:Urethra / Q000002:abnormalities* / Q000473:pathology; D014525:Urethral Stricture / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000209:etiology* / Q000601:surgery; D014567:Urography