Ultrasound of Thyroglossal Duct Cyst

In this radiology lecture, we review the ultrasound appearance of thyroglossal duct cyst with two unique cases!
Key teaching points include:
1) Thyroglossal duct cyst is the most common congenital neck cyst.
2) Most present before age 18 as a midline, fluctuant neck mass near hyoid bone.
3) Often asymptomatic unless superinfected = Abscess, draining sinus.
4) Epithelial-lined cysts caused by failure of normal involution of thyroglossal duct.
5) Can occur anywhere from foramen cecum of tongue to thyroid gland.
6) Most are infrahyoid, followed by hyoid and suprahyoid.
7) Most are midline, but can be paramedian (more likely if infrahyoid).
8) If infrahyoid, typically embedded in strap muscles.
9) May move with swallowing and elevates with tongue protrusion.
10) Presence of normal thyroid gland should be confirmed.
11) When simple, typically appears as an anechoic midline neck mass near hyoid bone.
12) Cyst complexity usually due to superinfection: Proteinaceous internal debris and septations, thick irregular walls, increased blood flow and surrounding inflammation.
13) Solid components may indicate ectopic thyroid or rarely (less than 1% of cases) thyroid cancer (typically papillary subtype).
14) Tx: Resection of cyst, surrounding tissue along the thyroglossal tract, and midline portion of hyoid bone = Sistrunk procedure.
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[@montalineberger4743]

I have one. Diagnosed at age 77.

[@Dr_amoljadhav2607]

Thank u soo much for sharing knowledge

[@Radquarters]

My pleasure, and thanks for watching!

[@subasthapa4839]

I have something of a bulging in my right frontal neck for 15 years, never went to hospital but I am pretty sure this is exactly my case. The frequent complications I have is like; coughing that is forceful to bring out the phelgm which is like a thick white jel & specially during morning When I cough forcefully immediately after that I usually get strong sensation of vomiting, then I have to drink soda like coca cola or others sweet drinks to control this urge to vomiting. Is that familiar to you or should I go to the doctor.

[@karensojourner8672]

I hope since posting this you have gone to the doctor.

[@cwesiaboagye9221]

Thanks

[@Radquarters]

You’re welcome!

[@muhammadnaumankhan8134]

Nice Sir❤

[@Radquarters]

Thanks ✌️