Hydronephrosis caused by kidney malrotation

• DOI: 10.1016/j.eucr.2021.101564
• Publication Date: 2021-01-12T23:36:30Z
• Authors: Natalie Divjak; Jacques Birraux; Hassib Chehade; Oliver Sanchez
• Keywords: Pyelo-ureteric joint obstruction; Laparoscopic ureterocalicostomy; Pediatrics; Kidney malrotation; Diseases of the genitourinary system. Urology; 3. Good health; 03 medical and health sciences; 0302 clinical medicine; info:eu-repo/classification/ddc/618; RC870-923; Pediatric urology; Kidney malrotation; Laparoscopic ureterocalicostomy; Pediatric urology; Pyelo-ureteric joint obstruction

Hydronephrosis associated with kidney malrotation can be a surgical challenge. We present the case of a 3.5 y.o.-boy presenting with left pyelo-ureteric obstruction caused by kidney hyperrotation (270°) resulting in recurring urinary tract infection. After complete radiological work-up, we opted for a primary laparoscopic ureterocalicostomy, which allowed for complete resolution of the pelvic dilatation. Kidney malrotation can present with a wide variation in anatomic features. Radiological work-up is the cornerstone of surgical strategy planning. Laparoscopic ureterocalicostomy is a useful primary option in unusual anatomical situations.