ABSTRACT

Horseshoe kidneys are the most common type of renal fusion anomaly and it may be associated with other anomalies and complications. Our case aims to present the partial nephrectomy of a horseshoe kidney with renal-cell carcinoma and cholecystectomy.

A sixty-year-old male patient was admitted to our outpatient clinic with a 3 cm suspicious mass in the horseshoe kidney that was detected during an attack of acute cholecystitis. Computed tomography revealed a heterogeneous hypodense lesion containing millimetric calcific foci of 35x31x33 mm in size at the ventral middle part of the right kidney. Partial nephrectomy was performed non-ischemically and then cholecystectomy was performed. Pathological examination revealed stage T1a clear cell renal carcinoma, WHO/ISUP Grade 2 with a negative surgical margin. During follow-up; urea, creatinine, and glomerular filtration rate were found to be normal.

Horseshoe kidneys are fairly common among renal anomalies. Cholecystectomy following non-ischemic partial nephrectomy for a tumor in the horseshoe kidney is a rare case.

Keywords: Horseshoe kidney, nephrectomy, cholecystectomy