| 1. | Rarely, cancer may be present in a thyroglossal duct cyst.
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| 2. | Up to half of thyroglossal cysts are not diagnosed until adult life.
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| 3. | Once the thyroglossal duct involutes, the cells will begin to degenerate and disappear.
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| 4. | Very rarely, the persistent duct can become cancerous, called thyroglossal duct carcinoma.
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| 5. | Thyroglossal Duct Cysts are a birth defect.
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| 6. | Three-fourths of abnormalities within a persistent thyroglossal duct involve the formation of a cyst.
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| 7. | Small accessory thyroid glands may in fact occur anywhere along the thyroglossal duct, from the Zuckerkandl's tubercle.
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| 8. | The pyramidal lobe is a remnant of the thyroglossal duct which usually wastes away during the thyroid gland's descent.
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| 9. | Some congenital swellings may not be discovered until later in life, such as a branchial cyst, dermoid cyst or thyroglossal cyst.
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| 10. | During a person's life, these cyst pockets can fill with fluids and mucus, enlarging when infected, presenting the thyroglossal cyst.
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