What Is an Ectopic Thyroid?

Ectopic thyroid gland is an embryonic malformation. The thyroid gland does not appear in the normal position of the neck and appears in other parts of the thyroid gland, such as the pharynx, the tongue, the upper hyoid bone, the sublingual bone, the front throat, the sternum, Intratracheal, esophageal, posterior sternum and intrathoracic. Among them, retrosternal goiter and thyroid tongue canal sac are more common.

Ectopic thyroid

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Ectopic

1. Posterior sternum goiter Because the mediastinum space behind the sternum is very narrow, a slight increase in the mass can cause more obvious compression symptoms. Such as tracheal compression can cause irritating cough, difficulty breathing, hoarseness caused by compression of the recurrent laryngeal nerve, etc .; compression of the sternum or spine can cause chest pain or chest pain.

2. Thyroid-tongue duct cysts: Most cysts are located in the midline of the neck. It can occur from the blind hole of the tongue to any part of the sternal notch, but the upper and lower parts of the hyoid bone are the most common. Cysts grow slowly, are round or oval, vary in size, are generally 1-2cm in diameter, have a smooth surface and clear edges. The cysts that are not infected have no adhesion to the surface skin and surrounding tissues, and cannot be pushed up or down or left and right There is no tenderness, nor does it affect swallowing movements. Often, the cysts are filled with tightness and the mass has a substantial feeling. The mass can move up and down with swallowing or tongue extension.

Crowd: thyroid-tongue duct cysts: more common in children aged 1-10 years, but also in adults, there is no big difference between men and women.