The exact role of PET/CT in the setting of MEN1 is still unknown; however, somatostatin receptor or glucagon-like peptide-1 receptor positron emission tomography (PET)/CT should not be regarded as first-line screening modality but could be subsequently used to detect metastases or to localize insulinomas (8, 28). The gene discussed is GLP1R; the disease is pancreatic insulinoma.