<prompt> The commonest pancreatic tumour is -Ductal adenocarcinomaCystadenomaIn sulinomaNon islet cell tumour  <response>: Ans. is a i.e., Ductal adenocarcinoma Grainger writes - Tumors both benign and malignant, may arise in the exocrine or endocrine tissue of the pancreas. The commonest of these is ductal adenocarcinoma. 