Induction of pancreatic duct of carcinomas in the Syrian hamster with 2,6-dimethylnitrosomorpholine.

Pancreatic duct carcinomas were induced in Syrian hamsters by intragastric administration of 2,6-dimethylnitrosomorpholine. As early as 30 weeks after treatment began, tumors were macroscopically visible in the pancreas; the maximum incidence of such tumors reached 71% by the end of the experiment. They were ductal in origin, and some metastasized to the lung. They were identified histologically as adenomas and carcinomas and developed in different parts of the organ without demonstrating any preferred localization.