Fig. 1From: A case report of mucinous adenocarcinoma derived from intra-ampullary papillary-tubular neoplasm with a malignant courseContrast-enhanced CT. a A 40-mm mass with an irregular margin was detected in the pancreatic head (arrowhead), and a low-density area with 20 mm in diameter was observed on the duodenal side of the mass (arrow). b An expanding main pancreatic duct was detected with a 9-mm diameter at the distal side of the tumor (arrow)Back to article page