Abstract
The ectopic thyroid gland is an abnormal development of the embryo. The thyroid gland does not appear in other parts of the neck, such as the pharynx, the tongue, the hyoid bone, the subgut, the anterior larynx, the sternum, the trachea, the esophagus, the sternum, and rearly chest, etc. Most of the ectopic thyroid occurs in the path around the thyroglossal duct or on the lateral side of the neck. The thyroid gland, which is located at the base of the tongue, is the most common ectopic thyroid gland, followed by the lingual bone and its upper and lower levels. However, ectopic thyroid occurs in the heart, which is rare. Since the 1980s, there have been only 20 cases in the world, while only 2 cases have been reported in China. Below we report a case of patient with a cardiac ectopic thyroid.