Table 1. Modified diagnostic criteria for the diagnosis of Cushing's disease according to a nationwide survey of patients with Cushing's syndrome in Korea (2000).

ACTH, adrenocorticotropic hormone; DMST, dexamethasone suppression test; TSA, transsphenoidal approach; MRI, magnetic resonance imaging; IPSS, Inferior petrosal sinus sampling; CRH, corticotropin-releasing hormone.