Internal Medicine
Online ISSN : 1349-7235
Print ISSN : 0918-2918
ISSN-L : 0918-2918
CASE REPORTS
Duodenal Duplication Cyst of the Ampulla of Vater
Shouichi TanakaMotohiro GoubaruAtsuyuki OhnishiHideaki TakahashiHiroki TakayamaTeruya NagaharaMasaya IwamuroShigeru HoriguchiTakeyuki OhtaIchiro Murakami
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JOURNALS OPEN ACCESS

2007 Volume 46 Issue 24 Pages 1979-1982

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Abstract

A 35-year-old man presented with the complaint of epigastric discomfort. Gastrointestinal endoscopy and endoscopic ultrasonography revealed a cystic lesion 20 mm in size at the ampulla of Vater. Endoscopic retrograde cholangiopancreatography (ERCP) revealed that the cystic lesion communicated with both the common bile duct and pancreatic duct via the common channel. Choledochocele was ruled out by close examination of the ERCP findings. The cystic lesion was surgically resected. Since histological findings revealed that the mucosa inside the lesion was duodenum-like and contained a layer of smooth muscle, the lesion was diagnosed as a congenital duplication cyst of the duodenum.

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© 2007 by The Japanese Society of Internal Medicine
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