<prompt> Which one of the following is not a CT feature of Adrenal adenoma ?Low attenuationHomogeneous density and well defined bordersEnhances rapidly, contrast stays in it for relatively longer time and washes out lateCalcification is rare  <response>: Ref: internet CT is often the modality which identifies an adrenal mass. Founately using density is highly sensitive and specific as 70 of adrenal adenomas contain significant intracellular fat. Lipid-poor adenomas are more difficult to diagnose because the CT density increases and approach those of soft tissue. For lipid-poor lesions, the 15 minutes post contrast 60 absolute It is impoant to note that hypervascular metastases may show identical washout values, paicularly those from . An alternative diagnosis to adrenal adenoma must be considered when there is a value 120 HU on the poal venous phase, paicularly in cases with a prior history of neoplasm 