Crossed renal ectopia associated with malrotation of intestine- A rare case report.

Address for Correspondence: Dr. Roopa Kulkarni, Professor of Anatomy, M.S.Ramaiah Medical College, Bangalore-560054, Karnataka, India. Phone No.: 080.23327302, Mobile: 9880134985. E-Mail: drroopa9@rediffmail.com Access this Article online Quick Response code Web site: 1 Professor of Anatomy, M S Ramaiah Medical College, Bangalore, India. 2 Associate Professor of Anatomy, M S Ramaiah Medical College, Bangalore, India. 3 Professor of Anatomy, M.S.U.; I.M.S., Bangalore Campus, Bangalore, India. Background: Kidneys and ureters demonstrate a wide range of anomalies due to its complex development. One such anomaly would be the crossed renal ectopia which is fusion of both kidneys on to one side and malpositioned at the pelvis. The occurrence of these anomalies, though rare, is due to multifactorial reasons. The renal anomaly was observed in a formalin fixed adult cadaver during the undergraduate medical dissection. The abdominal cavity, on opening, revealed malrotation of the gut with the large intestine on the left side and the small intestinal loops on the right side. The left renal fossa was empty due to fusion of the left kidney with the right kidney forming a lump kidney. The ureter of the left kidney was draining in to its normal position into the urinary bladder. The position of the lump kidney was in the right iliac fossa. It was having arterial feeders from the abdominal aorta and the common iliac arteries and was draining into the inferior vena cava and the right common iliac veins by 5 renal veins. Crossed renal ectopia rarely may be associated with malrotation of the gut. Awareness of such anomalies could be due to incidental finding and helps the surgeons and radiologists in their diagnosis and planning and preventing postoperative complications.