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A thyroglossal cyst or thyroglossal duct cyst is a fibrous cyst that forms from a persistent thyroglossal duct. Thyroglossal cysts can be defined as an irregular neck mass or a lump which develops from cells and tissues left over after the formation of the thyroid gland during developmental stages.
Local infections, such as colds, tonsillitis, or inflammation of the lymph nodes in the area can also lead to the accumulation of fluid within the duct. [2] Even if the cyst forms as secondary to another infection and improved after antibiotics, it will often reoccur and require treatment. [citation needed] Example of Thyroglossal duct cyst.
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Long-standing infected thyroglossal duct cyst in a 29-year-old male patient. a Transverse greyscale ultrasound at midline, just above the level of the thyroid gland, shows an oval cystic lesion with internal echoes (white arrows) and posterior enhancement (arrowheads). b Transverse colour Doppler ultrasound shows surrounding peripheral flow ...
[6] [9] Surgical removal of the mass is the definitive treatment for ectopic thymus tissue that is causing symptoms. [4] It has been reported that the ectopic thymus tissue can transform into cancerous tissue. [4] However, due to most diagnosed ectopic thymus tissue being resected due to this concern, the natural progression is not well explored.
Alternative diagnoses for CCRN consist of thyroglossal duct cyst, hair follicle naevus, fibroepithelial polyp, and branchial cleft cyst. [6] Thyroglossal duct cysts are typically found in the midline of the neck, near the hyoid bone, and move with tongue protrusion or swallowing. [7]
Papillary thyroid cancer (magnified at right) arising within ectopic thyroid tissue of a thyroglossal cyst is a rare occurrence (less than 1% of such cysts). [38] According to Surveillance, Epidemiology, and End Results (SEER), the incidence of papillary cancer has increased from 4.8 to 14.9 per 100,000 from 1975 to 2012. Females are more ...