The structure represented as “B” in the picture below is closely associated to which of the following?
A. Bronchogenic cyst.
B. Cystic hygroma.
C. Thyroglossal cyst.
The structure represented as “B” in the picture above represents Hyoid bone.
- The most common location for a thyroglossal cyst is midline or slightly off midline, between the isthmus of the thyroid and the hyoid bone or just above the hyoid bone.
- Hyoid bone is closely associated with the thyroglossal tract from which thyroglossal cyst & fistula originate,
- Thus during surgical excision of the thyroglossal cyst or fistula, the central part of the hyoid bone is excised (otherwise recurrence may occur).