Anthropometric measures, basal clinical laboratory values, results before and after the dexamethasone suppression test, OGTT results, such as fasting glucose and impaired glucose tolerance prevalence, OGTT AUCs, surrogates of insulin sensitivity, beta–cell secretion measures, hepatic insulin extraction, and fasting endogenous glucose production in controls (CON) and the 3 adrenal incidentaloma patients’ subgroups: pDexa<1.8μg/dL, post-DST-cortisol concentrations <1.8μg/dL; pDexa1.8-5μg/dL, 1.8-5μg/dL; and pDexa>5μg/dL, >5μg/dL. The gene discussed is INS; the disease is adrenal cortex adenoma.