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Flashcards in Endocrine Deck (6)
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1

Thyroid Development

Thyroid diverticulum arises from floor of primitive pharynx and descends into neck. Connected to tongue by thyroglossal duct, which normally disappears but may persist as pyramidal lobe of thyroid. Foramen cecum is normal remnant of thyroglossal duct. Most common ectopic thyroid tissue site is the tongue.

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Thyroglossal duct cyst (A) presents as an anterior midline neck mass that moves with swallowing or protrusion of the tongue (vs. persistent cervical sinus leading to branchial cleft cyst in lateral neck).

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presents as an anterior midline neck mass that moves with swallowing or protrusion of the tongue

Thyroglossal duct cyst