<prompt> Which of the following is the most common endocrine tumor of pancreas?GastrinomaVIPomaInsulinomaGlucagonoma  <response>: INSULINOMA: It is Pancreatic Neuroendocrine Tumor. Overall most common functional Pancreatic Neuroendocrine Tumor. NEURO ENDOCRINE TUMORS NET OF PANCREAS Mc Neuroendocrine tumor NET:Non- functional Mc functional Neuroendocrine tumor:Insulinoma Mc functional malignant NET:Gastrinoma. MC Enteropancreatic NET seen in MEN 1 -Nonfunctioning PPoma pancreatic polypeptide secreting tumor MC Functional Enteropancreatic NET in MEN 1 -Gastrinoma Insulinoma 