Advanced Renal Pelvic Carcinoma Revealed after Treatment of a Staghorn Calculus by Endoscopic Combined Intrarenal Surgery

Abstract EN

Renal pelvis carcinoma associated with staghorn calculus is a clinically rare condition.

A 66-year-old man presented with flank pain due to an 8 cm complete staghorn calculus.

We performed three lithotomies using endoscopic combined intrarenal surgery and carried out intraoperative biopsy.

Histopathological examinations revealed a keratinized lesion.

One month later, contrast-enhanced computed tomography showed an advanced renal pelvis carcinoma.

These findings demonstrate that even an intraoperative biopsy may be insufficient to diagnose a renal pelvis carcinoma associated with a staghorn calculus.

The possibility of RPCa developing when treating a long-standing staghorn calculus should therefore be kept in mind.