An atlas of I-131 iodocholesterol scintigraphy, each with correlative CT or MRI illustrates the findings in 12 patients with biochemically proven Cushing's syndrome and ultimate surgical cure. Included are patients with both ACTH dependent and independent disease, as well as patients with postoperative functional adrenal remnants. Emphasis will be on the concordance or discordance of the anatomical and functional imaging modalities.