<prompt> Which of the following is not a CT feature of adrenal adenoma?Low attenuationHomogeneous density and well defined bordersEnhances rapidly, contrast stays in it for a relatively longer time and washes out lateCalcification is rare  <response>: Adrenal adenoma on contrast enhanced CTMRI show rapid uptake and relatively rapid washout of contrast material than non adenomas. CT Features of Adrenal Adenoma Well defined sharply defined 5 cm in size Low attenuation 10 HU due to lipid content Mild homogenous enhancement Relatively rapid washout of contrast material due to lack of large interstitial spaces Relatively rapid washout is characteristic of adenoma 