Magnetic resonance imaging in Cushing's disease

Thirty-seven-year-old female with Cushing's disease caused by a 9 x 11 x 14 mm corticotroph macroadenoma. Left panel: Coronal section of unenhanced MR image of the sella turcica. The macroadenoma appears as an area of decreased signal intensity impinging upon the optic chasm above and the sphenoid sinus below (arrows). Right panel: Coronal gadolinium-enhanced MR image of the sella turcica. The microadenoma appears as an area of enhanced signal intensity with some areas of nonhomogeneity.