Objective To report our experience of using laparoscopy left, two right). One kidney was found at the left iliac fossa just above the pelvic brim, one at the left lumbar for the accurate location and simultaneous removal of small dysplastic kidneys with ectopic ureteric inserregion, and the other at the right iliac fossa. Laparoscopic nephroureterectomy was successful in tion causing urinary incontinence and that were not detected by conventional imaging modalities.all seven girls and the patients were discharged 48 h after surgery. The follow-up (mean 2.7 years, range Patients and methods Seven girls (mean age 7.9 years, range 3.5-13) presented with urinary leakage occur-3 months-5.4 years) showed excellent cosmetic results and all the patients have remained completely dry. ring between normal voids. Imaging studies including ultrasonography, renal scintigraphy, intravenousConclusions In patients with a classical picture of urinary incontinence caused by infrasphincteric ureteric ectourography, computed tomography and/or magnetic resonance imaging in six of the seven patients revealed pia associated with a small nonfunctioning kidney, video-laparoscopy, with its magnifying eCect, can a single normal functioning kidney, but failed to detect the contralateral nonfunctioning dysplastic kidney. All reliably confirm the diagnosis, locate the dysplastic kidney and allow its removal in the same setting. We patients were examined under anaesthesia, followed by transperitoneal laparoscopy for the simultaneous propose that laparoscopy should be considered the investigation and treatment of choice in such patients, localization and removal of the dysplastic kidneys under the same setting.and should be undertaken without delay even if the dysplastic kidney or the ectopic ureteric orifice cannot Results Laparoscopy in all seven patients revealed a small dysplastic kidney that could always be easily be identified with all other conventional means. Keywords Laparoscopy, dysplastic kidney, ectopic located by first finding the draining ureter over the iliac vessels and then following it upwards. Four ureter, urinary incontinence dysplastic kidneys were found in the renal fossa (two defy detection even with repeated examinations using

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