<prompt> Best method of localization of insulinoma:-EUS with intra-operative palpationMRI with dynamic CTSRSCECT  <response>: Localization of insulinoma Gold Standard Investigation - 72 hours fasting Insulin Glucose ratio 0.4 is diagnostic Best pre-op Test for localization- Intra Aerial Ca injection with poal venous blood sampling Overall best Investigation for localization - EUS along with Intra-Op Palpation 