Unusual cause of gastric outlet obstruction mimicking superior mesenteric artery syndrome: A case of infiltrative duodenal cancer arising from a choledochocele

Choledochocele is a rare subtype of choledochal cyst and is associated with increased prevalence of periampullary cancers. Here, we report an unusual manifestation of infiltrative duodenal cancer arising from a choledochocele, involving superficial spreading (muscularis mucosae) of cancer cells alon...

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Bibliographic Details
Published in:JGH open 2022-01, Vol.6 (1), p.91-93
Main Authors: Jang, Min Jae, Kim, Hyun Gun, Oh, Chi Hyuk, Kim, So‐Woon, You, Myung‐Won
Format: Article
Language:English
Subjects:
Bile ducts
Cancer
Case Report
Case Reports
choledochal cyst
Cysts
duodenal cancer
duodenal neoplasm
Endoscopy
Gallbladder
gastric outlet obstruction
Magnetic resonance imaging
pancreaticobiliary maljunction
Patients
Small intestine
superior mesenteric artery syndrome
Surveillance
Tumors
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Summary:Choledochocele is a rare subtype of choledochal cyst and is associated with increased prevalence of periampullary cancers. Here, we report an unusual manifestation of infiltrative duodenal cancer arising from a choledochocele, involving superficial spreading (muscularis mucosae) of cancer cells along the duodenum causing gastric outlet obstruction, which clinically mimicked superior mesenteric artery syndrome. Histologically, wide spread of cancer cells was confirmed from periampullary region to duodenojejunal junction showing mismatch with radiologic findings, in which the cancer segment was mainly located in the distal duodenum. Clinical, radiologic, and pathologic findings are discussed with literature reviews. The MRCP image presents the choledochocele with pancreaticobiliary maljunction. Thickened wall of choledochocele indicates cancer change. Choledochocele‐associated cancer infiltrated wide range of duodenum and caused stenosis in the distal duodenum.
ISSN:2397-9070
2397-9070
DOI:10.1002/jgh3.12695