INS and diabetes mellitus: Of patients with IPMN, 10–45% have diabetes [11–14, 16, 19, 31, 36, 37] and in the case of diabetes, the risk of detecting IPMN is higher (OR 1.79; 95% CI 1.08–2.98) [35], especially in the case of insulin-use (OR 6.03, 95% CI 1.74–20.84) [35].