Figure 2From: Distinguishing benign from malignant adrenal masses(a) Unenhanced images show a right adrenal mass (arrow) which measures 9 HU. (b) This has an HU of 45 on the enhanced and (c) 20 on the delayed image. By enhancement washout calculations this mass hasa washout of 70%, which is diagnostic of an adenoma. Subsequent follow-up imaging showed stability of the mass.Back to article page