1994 Volume 44 Pages 151-154
A 42-year-old male was admitted to our hospital due to abdominal discomfort and jaundice. Ultrasound (US) and computed tomography (CT) demonstrated dilatation of common bile duct, but tumor was not depicted.
Endoscopic ultrasound (EUS) showed hypoechoic mass within the wall of the common bile duct, and acoustic shadow was observed adjacent to the mass. Percutaneous transhepatic biliary drainage (PTBD) revealed stenosis in the mid portion of the common bile duct. Arterial phase of gastroduodenal on angiogram encasement of posterior arcade branches was identified as small pancreatic carcinoma accomapnied with minimal invasion to parenchymal.
Histology of resected specimen after pancreatoduodenectomy disclosed pancreatic ductal adenocarcinoma arising from peripheral side branch measuring 1.5×1.5×1.0cm. Wirsung, Santorini and the main pancreatic duct were normal. Pathological feature corelates to those of diagnostic imagings with EUS and angiography.
