Abstract
Thyroglossal duct cyst (TDC) often occurs as monolocular type between the foramen caecum of the tongue and the thyroid gland. We treated a case of bilocular TDC with dysphagia arising in both upper and lower sites of the hyoid bone. The hyoid bone was found to be located at the boundary between the bilocular cystic on contrast radiography. Cystic patterns were also found at the upper anterior and lower posterior areas of the hyoid bone on CT. The patient was admitted to the emergency room of our hospital because of dysphagia shortly after the first visit, and TDC was extirpated by Sistrunk's method under general anesthesia. No recurrence has been noted as of 7 years after the operation.
