TY - CHAP M1 - Book, Section TI - Incidentally Discovered Adrenal Masses A1 - Fitzgerald, Paul A. A2 - Papadakis, Maxine A. A2 - McPhee, Stephen J. A2 - Rabow, Michael W. A2 - McQuaid, Kenneth R. PY - 2023 T2 - Current Medical Diagnosis & Treatment 2023 AB - Adrenal incidentalomas are defined as adrenal nodules that are discovered incidentally on abdominal imaging obtained for other reasons. Their incidence increases with age, being found on 1–7% (average 4%) of all CT or MRI scans. About 75% are nonfunctioning adrenal adenomas; however, 14% secrete increased cortisol or aldosterone, resulting in Cushing syndrome or aldosteronism, respectively, and 7% are pheochromocytomas. Another 4% of incidentalomas represented metastases or adrenal adenocarcinomas. The differential diagnosis for incidentally discovered adrenal masses also includes adrenal infection, hemorrhage, and cysts. SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/04/19 UR - accessmedicine.mhmedical.com/content.aspx?aid=1193160902 ER -