[Renal colic in a patient with crossed renal ectopia].

OBJECTIVES

To report a new case of renal colic in a patient with crossed renal ectopia and L-shaped kidney, and to perform a bibliographic review.

METHODS AND RESULTS

A 33-year-old male patient consulted for abdominal right pain. Ultrasound and CT showed a L-Shaped Kidney with left renal and ureteral stones. These stones produced obstructive left collecting system. This patient was managed with left pyelolithotomy and ureterolithotomy. The transabdominal approach was recommended to resolve this stones.

CONCLUSIONS

The crossed renal ectopia with fusion is a rare condition. The abnormal kidney position and the anomalous kidney supply may impede drainage from the collecting system, creating a predisposition to urinary tract infection and calculus formation. The colic in this patient sometimes is misdiagnosed how abdominal disease. The usual method of detection was excretory urography but now ultrasonography and CT have showed more cases. The indications for open surgery in treatment the stones, are generally failure of extracorporeal shock wave lithotripsy, this is common in these cases for the anatomic abnormality, and the transabdominal approach is recommended to resolve its complications in this kidneys.