Anatomy A child presents with a midline swelling beneath the arch of the hyoid bone. What might this swelling be? A Thyroglossal cyst B Sternocleidomastoid tumour C Both of the above D None of the above 💡 Explanation A child presents with a midline swelling beneath the arch of the hyoid bone. What might this swelling be? ✓ Correct Answer: A. Thyroglossal cyst