A Rare Case of an Intracardial Ectopic Thyroid in the Right Ventricle

The ectopic thyroid gland is an abnormal development of the embryo. Most of the ectopic thyroid occurs in the path around the thyroglossal duct or on the lateral side of the neck. However, ectopic thyroid occurs in the heart, which is rare. We report a case of right ventricular ectopic thyroid. This case highlights the imaging characteristics of computed tomography (CT) and cardiac magnetic resonance (CMR) and analyzes the underlying mechanisms for a timely diagnosis.