Chronic Cholecystitis with Cholecystodoudenal Fistula and Ectopic Galstone Resulting in Bouveret Syndrome, a Case Report

Chronic cholecystitis is caused by prolonged gallbladder inflammation, which is most often associated with cholelithiasis, causing intermittent obstruction of the cystic duct. Cholelithiasis is associated with the condition in 95% of cases and is the most common finding besides non-specific gallbladder wall thickening. Chronic cholecystitis can occur with minimal symptoms such as epigastric abdominal pain and bloating predominantly after meals. We present a complex case demonstrating complications that can arise from chronic gallbladder inflammation, including cholecystodoudenal fistula with an ectopic cholelith in the duodenum resulting in Bouveret Syndrome. The patient was initially started on medical therapy but ultimately required surgery to correct the problem. This case focuses on the imaging findings as well as therapeutic interventions available for such patients with complicated chronic cholecystitis.