Question
The bone shown in the picture below is closely associated to ?
A. Bronchogenic cyst.
B. Cystic hygroma.
C. Thyroglossal cyst.
D. Ranula.
Show Answer
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Correct Answer » C Explanation |
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Ans: C. Throglossal Cyst.
The bone shown in the picture above represents the hyoid bone.
THYROGLOSSAL CYST
- It is congenital in origin.
- It is cystic swelling developed in the remnant of the thyroglossal duct or tract.
Clinical Features
- Site – It may be present in any part of the thyroglossal tract (thyroglossal tract extends from foramen caecum to the isthmus of thyroid).
- Hyoid bone is closely associated with Thyroglossal cyst/fistula.
Common sites are:
- Subhyoid (most common) in the region of the thyroid cartilages,
- Suprahyoid in the floor of mouth
- Beneath the foramen caecum
- It is a painless midline swelling,moves with protrusion of tongue and on deglutition.