Duodenal diverticula

Case contributed by Mostafa Elfeky
Diagnosis probable

Presentation

Obstructive jaundice

Patient Data

Age: 75 years
Gender: Female

CT abdomen with contrast

ct

Moderate dilatation of CBD reaching 22 mm till its end with moderate intrahepatic biliary radical dilatation. A small biliary stone is seen impacted at the ampulla of Vater measuring 2 x 3 mm.

Bilateral proximal renal artery stenosis by atherosclerotic plaques is also noted.

Annotated images

ct

The featured images show the two duodenal diverticula and the ampullary stone.

Case Discussion

Duodenal diverticula are by far most commonly located along the medial wall of the second or third part of the duodenum. They are usually asymptomatic. Rarely they can cause compression on the intrapancreatic part of common bile duct with resultant upstream dilatation of the extra- and intrahepatic bile ducts; known as "Lemmel syndrome". However, in this case, the ampullary obstruction is caused by a small stone with moderate intrahepatic biliary radical dilatation as well as the common bile duct. Diverticula located at the ampulla of Vater may cause difficulty to cannulate the biliary system during endoscopy.

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