Abstract
During the last 4 years, 7 infants (two boys and five girls with ages ranging from 5 days to 10 months with a mean of 3.9 months) were experienced. Four cases presented with severe infection, two with abdominal swelling, one with prenatal hydronephrosis. All were ectopic ureterocele (bilateral 2 and unilateral 5) and associated with the duplex system, except for one with unilateral single ectopic ureterocele. Voiding disturabance was observed in 4 cases including 2 with cecoureterocele. Eversion of the ureterocele was noted in 5 cases on voiding cystourethrography and/or endoscopy. Transurethral incision (TUI) was primarily performed in 6 (8 units) at the time of endoscopy. Vesicoureteral reflux was appeared in all units after TUI, but resolved spontaneously in 3 units. The TUI for free drainage resulted in the easy control of infection with no further episode of severe infection. Assessment of renal function by <99m>^Tc-DTPA scintigraphy showed that 2 units apparently improved after TUI, though one unit in bilateral case deteriorated. Because of amelioration of the renal function and control of infection, definitve surgery such as heminephroureterectomy or ureteroneocystostomy, could be delayed. Despite of the risk of reflux, TUI of the ureterocele in infants, including everting one, is an effective initial modality for the better drainage and preserving the function of the adjoining unit.
