<prompt> Which of the following endocrine tumors is most commonly seen in MEN I ?InsulinomaGastrinomaGlucagonomaSomatotrophinoma  <response>: In MEN 1 : Gastrinoma 50 Insulinoma 10-30 Glucagonoma 3 Somatotrophinoma 25 Reference : page 2336 Harrisons Principles of Internal Medicine 19th edition 