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[Obstructive ectopic ureterocele: review of the literature in the light of the authors' own experience].

The epidemiology, clinical presentation, evaluation and methods of surgical management of ectopic ureteroceles was studied. The prenatal detection of hydronephrosis of the upper pole of duplex systems allows early surgical correction, and this effectively decreases the risk of urinary tract infection, urosepsis and irreversible loss of renal function. Yet a precise prenatal diagnosis of accompanying ureterocele is not necessary for efficient postnatal management.