An adrenal incidentaloma is an adrenal mass detected on imaging not performed for suspected adrenal disease.
The imaging study is not done for symptoms related to adrenal hormone excess (e.g. pheochromocytoma, Cushing’s or Conn’s syndrome) or an otherwise suspected adrenal mass .
Screening imaging in patients with a hereditary syndrome leading to adrenal tumors is outside the definition of an adrenal incidentaloma.
Adrenal masses discovered on an imaging study performed during tumor evaluation for extra-adrenal malignancies (‘tumor staging’ or follow-up) do not meet the strict definition of adrenal incidentaloma.