title: Prenatal urinoma related to ureteropelvic junction obstruction: poor prognosis of the affected kidney.
abstract: OBJECTIVE
  We evaluated functional outcome of kidneys with fetal urinoma associated to ureteropelvic junction obstruction.
  
  
  METHODS
  We retrospectively reviewed 5 cases of antenatally diagnosed urinoma associated to hydronephrosis. Prenatal imaging work-up consisted of ultrasound (US) and magnetic resonance (MR) examination. Differential renal function was assessed postnatally with renal scintigraphy.
  
  
  RESULTS
  Four male fetuses and 1 female fetuse presented with urinoma with hydronephrosis diagnosed by US at 24-25 weeks gestational age and confirmed by MRI examination at 28-29 weeks gestational age. On postnatal US, urinoma had disappeared in 4 cases. Parenchyma of the affected kidney was poorly differentiated in all cases. Ureteropelvic junction obstruction was confirmed in the 5 cases. Renal scintigraphy revealed poor functioning kidney (1%) in 2 cases, no function in 1 case, and impaired function in 2 cases (17%).
  
  
  CONCLUSIONS
  Association of upper urinary tract dilatation caused by ureteropelvic junction obstruction and prenatally diagnosed urinoma may suggest a poor ipsilateral functioning kidney.
authors.affiliation: Department of Pediatric Surgery, Hôpital Nord, Université de la Méditerranée, Marseille, France.
authors.forename: Lefteris
authors.initials: L
authors.lastname: Stathopoulos
authors.forename: Thierry
authors.initials: T
authors.lastname: Merrot
authors.forename: Kathia
authors.initials: K
authors.lastname: Chaumoître
authors.forename: Florence
authors.initials: F
authors.lastname: Bretelle
authors.forename: Fabrice
authors.initials: F
authors.lastname: Michel
authors.forename: Pierre
authors.initials: P
authors.lastname: Alessandrini
mesh_terms: D005260:Female; D005315:Fetal Diseases / Q000175:diagnosis / Q000209:etiology*; D006801:Humans; D007682:Kidney Pelvis; D008297:Male; D011379:Prognosis; D012189:Retrospective Studies; D014517:Ureteral Obstruction / Q000150:complications* / Q000175:diagnosis; D053584:Urinoma / Q000175:diagnosis / Q000209:etiology*