Mucinous metaplasia of the renal pelvic epithelium in a case of recurrent urolithiasis and pyelonephritis.

The occurrence of mucinous metaplasia of the renal pelvis in the absence of an associated malignancy is quite uncommon. We report a case of mucinous metaplasia of the renal pelvic epithelium without an associated squamous metaplasia in a 40-year-old male with history of recurrent left renal calculi and urinary tract infections since the age of 10 years. Copyright 2004 S. Karger AG, Basel