A Thyroglossal Cyst With Double Duct Seen in an Adult Patient.

Thyroglossal duct cysts (TDCs) are one of the most common congenital cervical masses that develop in children. Double TDCs are reported in very few patients in the literature. However, the authors did not come across any thyroglossal cyst with double duct in the English literature. A 35-year female patient consulted to authors' clinic with complaints of a swelling localized on the left side of the neck and recurrent purulent discharge. A Sistrunk operation was planned and during the operation, 2 fistula tracts, both terminated in the hyoid bone, were exposed.Usually, only one fistulous tract opens onto the skin; however, in the authors' patient, the authors encountered TDC with double ducti. To authors' knowledge, no similar patients were reported in the literature.