Adrenal Mass Source: Mayo-Smith WW, Song JH, Boland GL, et al. Management of Incidental Adrenal Masses: A White Paper of the ACR Incidental Findings Committee. J Am Coll Radiol. 2017;14(8):1038-1044. doi:10.1016/j.jacr.2017.05.001 Adrenal washout calculator.