title: A seven-month-old male infant with lethargy and an abdominal mass.
authors.affiliation: Department of Pediatrics, Medical College of Virginia Hospital, Richmond 23298, USA.
authors.forename: C
authors.initials: C
authors.lastname: McKiernan
authors.forename: M A
authors.initials: MA
authors.lastname: Dolan
mesh_terms: D003937:Diagnosis, Differential; D006801:Humans; D006869:Hydronephrosis / Q000473:pathology; D007223:Infant; D008297:Male; D014521:Urethra / Q000002:abnormalities*; D001748:Urinary Bladder Neck Obstruction / Q000175:diagnosis / Q000209:etiology / Q000473:pathology*