The cystic masses of the neck are usually benign lesions but they rarely may include malignancy or may be a metastasis of a carcinoma. Ectopic thyroid tissue is frequently seen on the tongue base. thyroglossal duct and around the thyroid gland itself; but also can be seen in unexpected localizations. A 50- year-old male patient is operated due to neck mass of unknown origin after phys... https://www.knowall.blog/