J Korean Soc Radiol.  2015 Mar;72(3):176-179. 10.3348/jksr.2015.72.3.176.

Intraluminal Duodenal Diverticulum: CT and Gadoxetic Acid-Enhanced MRI Findings

• Kim JM
• Lee NK
• Kim S
• Kim DU
• Kim TU

• KMID: 2161169
• DOI: http://doi.org/10.3348/jksr.2015.72.3.176

Abstract

Intraluminal duodenal diverticulum (IDD) is a rare congenital anomaly. IDD can become symptomatic in 20% to 25% of cases when complicated by intestinal obstruction, pancreatitis, or hemorrhage. We report the case of a 21-year-old female presenting with IDD mimicking duodenoduodenal intussusception. We describe the imaging features of IDD on the gadoxetic acid-enhanced magnetic resonance image as well as computed tomography.

MeSH Terms

Diverticulum*
Female
Hemorrhage
Humans
Intestinal Obstruction
Intussusception
Magnetic Resonance Imaging*
Pancreatitis
Young Adult

Figure

• 

  Fig. 1 Intraluminal duodenal diverticulum in a 21-year-old female. A. Axial contrast-enhanced CT at an external institution shows bowel within bowel configuration (arrows) at the 4th portion of the duodenum. B. Axial contrast-enhanced CT at a more inferior level than A shows food materials (arrow) at the distal end. C. Coronal T2-weighted thin-slab fast spin-echo MRI shows fluid-filled sac surrounded by a hypointense rim (arrows) in the descending duodenum. D. Coronal gadoxetic acid-enhanced T1-weighted image obtained 60 min following injection shows a distended intraluminal diverticulum (arrows) compared to C, due to contrast filling. E. Endoscopy shows intraluminal polypoid swelling in the descending duodenum. A diverticular opening (arrow) is observed at the swelling. F. Follow-up contrast-enhanced CT with sagittal reformation shows an intraluminal diverticulum with windsock appearance (arrows) in the descending duodenum.

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