(A) Noncontrast computed tomography (CT) image at the level of the adrenal glands shows a nodule in the expected location of the right adrenal gland (arrow). The nodule is oval, well defined, and homogeneous. It does not show calcifications or areas of macroscopic fat. (B) Attenuation has been measured within the nodule. The region of interest is of adequate size and satisfactorily placed. The attenuation reading within the region of interest is 6 Hounsfield units (HU).