Related Experiment Video For ampullary adenocarcinoma
Updated: Jan 22, 2026

Generation of Organoids from Mouse Extrahepatic Bile Ducts
Published on: April 23, 2019
Laterally Spreading Adenocarcinoma Involving the Lower Bile Duct and Duodenum Expressing Heterogeneous
Katsuyuki Miyabe1,2, Kenji Notohara3, Go Asano1
1Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Japan.
Abstract:
A 70-year-old man was admitted to our hospital due to elevated levels of hepatobiliary and pancreatic enzymes. Computed tomography showed contrast-enhanced mucosal hypertrophy from the duodenal papilla to the distal bile duct. Endoscopic examinations revealed a laterally spreading granular tumor and ampullary swelling. After surgical resection, an examination revealed well-differentiated adenocarcinoma of the ampulla with tubular adenoma spreading from the distal common bile duct to the second part of the duodenum showing both bile duct and duodenal phenotypes. To our knowledge, this is the first case of a tumor spreading from the bile duct to the duodenum that exhibited multiple phenotypes.
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