title: Diagnostic magnetic resonance-urography in an infant girl with an ectopic ureter associated with a poorly functioning segment of a duplicated collecting system.
abstract: We report on a case of an ectopic ureter associated with a duplicated collecting system in a 6-month-old girl. Results of conventional imaging and endoscopic studies, including intravenous pyelography, ultrasonography of the kidneys, cystoscopy, vaginoscopy, and vaginogram, were unremarkable. An ectopic ureter, extending from a poorly functioning upper pole of the ipsilateral duplicated kidney to its vaginal opening, was visible on the magnetic resonance-urogram. The imaging time was not extensive, and the need for patient sedation was minimal. Respiratory motion and intestinal gas did not interfere with the quality of the images. Magnetic resonance-urography may possibly be used as a primary diagnostic method for this anomaly when it is not detected by standard imaging techniques, or as a noninvasive substitute for some interventional studies in infants.
authors.affiliation: Department of Urology, St. Marianna University School of Medicine, Kawasaki, Japan.
authors.forename: N
authors.initials: N
authors.lastname: Yanagisawa
authors.forename: M
authors.initials: M
authors.lastname: Yajima
authors.forename: T
authors.initials: T
authors.lastname: Takahara
authors.forename: S
authors.initials: S
authors.lastname: Nosaka
authors.forename: T
authors.initials: T
authors.lastname: Iwamoto
mesh_terms: D005260:Female; D006801:Humans; D007223:Infant; D007674:Kidney Diseases / Q000175:diagnosis* / Q000503:physiopathology; D007685:Kidney Tubules, Collecting / Q000503:physiopathology*; D008279:Magnetic Resonance Imaging; D014513:Ureter / Q000002:abnormalities*; D014563:Urodynamics; D014567:Urography / Q000379:methods