title: Urethral polyp in asymptomatic male infant with prenatal hydronephrosis.
abstract: Congenital posterior urethral polyps are rare, benign lesions of the posterior urethra. We report a 1-day-old newborn boy with a solitary fibroepithelial posterior urethral polyp who presented with a history of prenatal mild hydronephrosis, subsequently associated with bladder wall thickening on ultrasonography.
authors.affiliation: Department of Surgery, University of Chicago Pritzker School of Medicine, Chicago, Illinois, USA.
authors.forename: Wayne
authors.initials: W
authors.lastname: Tsuang
authors.forename: David E
authors.initials: DE
authors.lastname: Rapp
authors.forename: Kate A
authors.initials: KA
authors.lastname: Feinstein
authors.forename: Marcelo A
authors.initials: MA
authors.lastname: Orvieto
authors.forename: Clare E
authors.initials: CE
authors.lastname: Close
mesh_terms: D003558:Cystoscopy; D003950:Diagnostic Techniques, Urological; D006801:Humans; D006869:Hydronephrosis / Q000000981:diagnostic imaging* / Q000209:etiology; D007231:Infant, Newborn; D008297:Male; D011127:Polyps / Q000150:complications / Q000175:diagnosis*; D016216:Ultrasonography, Prenatal; D014522:Urethral Diseases / Q000150:complications / Q000175:diagnosis*; D014524:Urethral Obstruction / Q000209:etiology*