A CASE OF SQUAMOUS CELL CARCINOMA OF THE RENAL PELVIS WITH RENOCOLIC FISTULA

A 53-year-old man was admitted to the hospital because of left flank dull pain. Abdominal US revealed a dilatation of the pelvis of the left kidney. DIP showed left non-function kidney and CT combined DIP revealed air density in the dilated pelvis. When percutaneous pelvic drainage was conducted, pus discharge was observed, and a catheterography performed at that time visualized that a contrast material entered the descending colon. We diagnosed the case as renocolic fistula. Pus discharge and high grade fever persisted and so a lapalotomy was performed 5 days after drainage. Left nephrectomy and partial resection of the colon were performed. A histological study revealed squamous cell carcinoma, grade 1, INFα, pT (colon), pR0, pL0, pV0. It has been reported that squamous cell carcinoma of the renal pelvis grows invasively. This case in which the carenoma directly invaded the colon to form fistula is very rare.