Abstract
Three cases with Adenosquamous carcinoma (ASC) of the pancreas who underwent surgical resection were retrospectively reviewed. 1 case had pStage III disease while 2 cases had Stage IVa diseases, though 2 cases survived more than 1 year after surgery. The growth pattern was expansive in 2 cases. There were no foci of the adenocarcinomatous component in 2 cases. Results of both US and CT were consistent with an expansive growth nature of the tumor in 2 cases. EUS revealed an increased level of internal echo in all of the tumors compared with ductal adenocarcinoma. ERCP showed marked compression of the main pancreatic duct by the tumor. Expansive growth, increased internal echo level, and compression on the main pancreatic duct would be useful findings for the preoperative diagnosis of ASC.
