<prompt> In Werner Syndrome, the most common site of Gastrinoma is?PancreasStomachSmall IntestineColon  <response>: Gastrinomas are either associated with MEN I syndrome 30 or sporadic 70. Duodenal gastrinomas is the most frequent site for both the formsMost gastrinomas 50-70 are present in the duodenum, followed by the pancreas 20-40 and other intraabdominal sites mesentery, lymph nodes, biliary tract, liver, stomach, ovary. Three cases with two extra abdominal sites have been described: gastrinomas of the left ventricular septum of the heart and non-small cell lung cancer. In MEN-1, the gastrinomas are also usually in the duodenum 70-90 or the pancreas 10-30, and they are almost always multiple. 