Intestinal metaplasia with dysplasia in pelvis of a horse-shoe kidney.

Intestinal metaplasia of renal pelvis occurs uncommonly and is usually secondary to persistent chronic irritation or inflammation. It is considered to be precursor of adenocarcinoma. A case of horse-shoe kidney which showed extensive intestinal metaplasia and focal severe dysplasia in the renal pelvis is being presented. The metaplastic change in this case is being attributed to persistent inflammation due to more chances of stasis in horse-shoe kidney coupled with renal calculi.