[Crossed renal ectora : a two cases report]

ABSTRACT

Crossed renal ectopia is a rare congenital anomaly, in which, the two kidneys are in the same side with one of the ureters which crosses the midline to be brought together in the bladder on the opposite side. Generally asymptomatic and of fortuitous discovery, this anomaly can appear by abdominal pains, urinary tract infection or a hematuria. The diagnosis rests on the radiological examinations in particular the ultrasonography, the intravenous urography and the CT scann. The treatment is surgical and is reserved for the complicated forms. We report two observations of children with a crossed renal ectopia The first observation is that of a 5 years old girl, presenting urinary tract infections at repetition whose etiologic assessment comprising a renal ultrasonography, a voiding cystourethrography as well as a three-dimensional tomodensitometry objectified a vesico-ureteral reflux grade HI, on left kidney in crossed ectopia. After sterilization of the urines, this patient profited from a surgical cure of her left vesicoureteral reflux with simple continuations.The second observation concerns a 10 years old boy, carrying a malformation anorectale, operated at birth, and at which the malformatif assessment [renal ultrasonography, vertebral radiography] objectified a left kidney in crossed ectopia with vesicoureteral ipsilateral reflux grade Ill associated with complex vertebral anomalies. This child was operated according to the same technique with simple operational continuations. From these two observations and after review of the literature, we recall the clinical, radiological and therapeutic characteristics of this malformation and discuss the pathogenic assumptions