Distinguishing pheochromocytoma from adrenal adenoma by using modified computed tomography criteria

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KIDNEYS, URETERS, BLADDER, RETROPERITONEUM

Distinguishing pheochromocytoma from adrenal adenoma by using modified computed tomography criteria Sohi Kang1 · Young Lyun Oh2 · Sung Yoon Park1  Received: 19 June 2020 / Revised: 22 August 2020 / Accepted: 8 September 2020 © Springer Science+Business Media, LLC, part of Springer Nature 2020

Abstract Purpose  To investigate the performance of modified criteria to distinguish pheochromocytoma from adrenal adenoma by using adrenal protocol computed tomography (CT). Methods  We retrospectively included consecutive 199 patients who underwent adrenal CT and surgically proven pheochromocytoma (n = 66) or adenoma (n = 133). Two independent radiologists analyzed two CT criteria for pheochromocytoma. Conventional criteria were as follows: (a) lesion attenuation on unenhanced CT > 10 Hounsfield unit (HU); (b) absolute percentage washout