# The management of a duodenal fistula involving the right hepatic duct: a rare case report

## TL;DR

This case report describes a rare internal fistula between the right hepatic duct and the duodenum, highlighting its management and clinical significance.

## Contribution

The paper presents a rare clinical case of right hepaticoduodenal fistula and provides insights into its diagnosis and treatment.

## Key findings

- Right hepaticoduodenal fistulas are extremely rare and often lack specific symptoms.
- The case was managed through a literature review to guide treatment and prevention strategies.

## Abstract

The formation of an internal fistula between the biliary system and the gastrointestinal tract is a rare condition with various etiologies, predominantly associated with recurrent chronic inflammation of the biliary system and tumors. Patients with this condition may lack specific clinical manifestations, presenting with symptoms such as abdominal pain, fever, jaundice, or may show no clinical signs at all. Common types of internal fistulas include cholecystoduodenal fistula, cholecystocolonic fistula, and choledochoduodenal fistula. Among these, the right hepaticoduodenal fistula is extremely rare and seldom reported in clinical literature. We herein report a case of right hepaticoduodenal fistula and analyze its mechanism, treatment principles, and preventive measures through a literature review.