The adrenal glands are endocrine glands which are located immediately on top of the kidneys. During an adrenal biopsy, a small sample of tissue is removed and sent to the pathologist for testing. The biopsy can be performed when a suspicious mass or tumor is found on one or both of the adrenal glands.
Update Date 8/5/2014
Updated by: Brent Wisse, MD, Associate Professor of Medicine, Division of Metabolism, Endocrinology & Nutrition, University of Washington School of Medicine, Seattle, WA. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.