# Ureterocolic Fistula Involving a Native Kidney and the Sigmoid Colon in a Renal Transplant Recipient

## TL;DR

This case report describes a rare ureterocolic fistula involving a native kidney and the sigmoid colon in a renal transplant recipient.

## Contribution

The paper presents the first documented case of this specific complication in the English literature.

## Key findings

- The patient had a successful right renal transplant but developed a fistula three years later.
- The fistula involved the native right kidney and the sigmoid colon.
- No prior cases of this exact condition have been reported in the English literature.

## Abstract

A ureterocolic fistula in a renal transplant patient is a rare complication. Even rarer is a ureterocolic fistula involving a native kidney in a patient with a functional, ipsilateral transplanted kidney, with no prior cases published in the English literature. In the current case report, we describe a patient with a previously successful right renal transplant, who presented three years later with a ureterocolic fistula involving the right native kidney and the sigmoid colon.