<prompt> All are true about Neuroendocrine tumor of pancreas except:Insulinoma is MCVIP cause diarrheaDiarrhea is MC symptom of gastrinomaSomatostatinoma cause gall stone formation  <response>: Insulinomas are the most common pancreatic endocrine neoplasms and present with a typical clinical syndrome known as Whipples triad - SchwartzGastrinoma Zollinger-Ellison Syndrome; The most common presenting symptoms are an abdominal pain 70-100, diarrhea 37-73. and gastroesophageal reflux disease GERD 30- 35; 10-20 have diarrhea only-HarrisonTable: GI Neuroendocrine Tumor Syndrome 