Thyroid and adrenal incidentalomas are commonly detected on computed tomography (CT) imaging. Due to the increased use of advanced CT imaging prevalence rates are still rising, leading to an ‘incidentaloma epidemic’ [1,2]. Since detailed knowledge about the natural course of thyroid and adrenal incidentalomas is limited, current international guidelines recommend further evaluation to rule out malignancy and/or excess hormone secretion [3,4].