RecruitingPhase 2Drug trialUtility of 18FDOPA PET/MRI for Focal HyperinsulinismThe purpose of the study is to provide access to 18F-DOPA PET to patients at Washington University and assess the utility of 18F-DOPA PET/MRI as a preoperative tool to detect and localize focal lesions in the pancreas that are causing hyperinsulinism.