A RARE CASE OF CROSSED FUSED RENAL ECTOPIA WITH LATERAL FUSION

Crossed renal ectopia with fusion is relatively uncommon. The reported incidence in literature is about 1 in 2000. We had a 52 year old female presenting with left lower abdominal pain and no other urological complaints. Clinical examination was found to be normal. Ultrasound abdomen showed empty right renal fossa and on left side two kidneys were fused together with gross hydronephrosis with thinned out cortex of one kidney. Contrast enhanced computerised tomography of abdomen and pelvis revealed right to left crossed kidney with fusion of right kidney with convex border of malrotated left kidney. Crossed right kidney had gross hydronephrosis and thinned out cortex. Cystoscopy was done and ureteric orifices were found in normal position. Scintiscan was done, which revealed less than 5 percent function of crossed right kidney. Nephrectomy of ectopic right kidney was done. Specimen confirmed to have right pelviureteric junction obstruction.(PUJO)