The normal position of the thyroid is at the front of the neck above the sternal notch. In retrosternal thyroid, a portion of the gland extends below the sternal notch.
Review Date 3/5/2020
Updated by: Debra G. Wechter, MD, FACS, general surgery practice specializing in breast cancer, Virginia Mason Medical Center, Seattle, WA. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.