2010 · UROLOGY

Prenatal Urinoma Related to Ureteropelvic Junction Obstruction: Poor Prognosis of the Affected Kidney

Stathopoulos, Lefteris, Merrot, Thierry, Chaumoitre, Kathia, Bretelle, Florence, Michel, Fabrice, Alessandrini, Pierre

Journal
UROLOGY
Année
2010
Volume
76
Numéro
1
Pages
190-194
Mois
JUL
DOI
10.1016/j.urology.2010.03.030

Abstract

OBJECTIVES 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. UROLOGY 76: 190-194, 2010. (C) 2010 Elsevier Inc.

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