Thyroid Development and Anomalies

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Questions and Answers

Which structure arises from the floor of the primitive pharynx and descends into the neck?

  • Thyroid diverticulum (correct)
  • Parafollicular cells
  • Thyroglossal duct
  • Foramen cecum

What is the normal remnant of the thyroglossal duct?

  • Foramen cecum (correct)
  • Thyroglossal duct cyst
  • Parafollicular cells
  • Thyroid diverticulum

Which is the most common ectopic site for thyroid tissue?

  • Pyramidal lobe of thyroid
  • Lingual thyroid (correct)
  • Thyroglossal duct cyst
  • Thyroid diverticulum

What is the consequence of removing lingual thyroid tissue if it is the only thyroid tissue?

<p>Hypothyroidism (B)</p> Signup and view all the answers

What is the origin of parafollicular cells?

<p>4th pharyngeal pouch (A)</p> Signup and view all the answers

What is the most common presentation of a thyroglossal duct cyst?

<p>An anterior midline neck mass that moves with swallowing or protrusion of the tongue (A)</p> Signup and view all the answers

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