Jacobs Journal of Clinical Case Reports

Large Obstructing Duodenal Diverticulum Mimicking a Cystic Neoplasm of the Pancreas

Published on: 2017-01-23


Diverticula can occur anywhere along the small bowel, but are most frequently seen in the duodenum [1]. Diagnosis of this condition is made incidentally in 2% to 6% of upper gastrointestinal contrast studies, in 12% to 27% of endoscopic studies and at autopsy in 22% of cadavers [2]. Most diverticula are asymptomatic and are discovered during evaluation for other gastrointestinal disorders. Perforation and bleeding are the most frequently reported complications. In rare cases, a duodenal diverticulum may become obstructed [3,4]. Duodenal diverticula (DD) are recognized on computed tomography (CT) or magnetic resonance imaging (MRI) as completely filled with gas or with a combination of fluid and gas [5]. If its content is purely fluid, the radiologist may potentially misinterpret a DD as a cystic tumor of the pancreas [2].