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MBBS QUESTION #10170
Question 1
A newborn has a midline neck swelling just below the hyoid bone that moves upward on protrusion of the tongue. This is most consistent with:
  • Branchial cleft cyst
  • Thyroglossal duct cyst✔️
  • Cystic hygroma
  • Cervical rib
Correct Answer Explanation
A thyroglossal duct cyst arises from remnants of the thyroglossal duct (the tract of thyroid descent from the foramen cecum), and its characteristic midline location with movement on tongue protrusion (via attachment to the hyoid bone) distinguishes it from lateral branchial cysts.