Failure of descent of thyroid analage can be seen in the tongue______________?
Correct answer: D. Near the base of tongue close to foramen caecum
- A. In anterior 2/3 of dorsal aspect
- B. In posterior 1/3 of dorsal aspect
- C. In anterior 2/3 of inferior surface
- D. Near the base of tongue close to foramen caecum
Explanation
A thyroid remnant caused by failure of descent may occur at the tongue base as a lingual thyroid. Its classic site is near the foramen caecum, along the embryonic thyroglossal duct path.
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