- Etiology: remnant of thyroglossal duct between base of tongue + thyroid bed, occur along path of thyroid descent from foramen cecum at tongue base to lower neck
- Imaging: paramedian cyst, closely related to strap muscles (sternohyoid, sternothyroid, thyrohyoid, omohyoid muscles)
- US: moves with tongue protrusion + swallowing
- CT: low density, no contrast enhancement unless infected
- MRI: T1 hypointense, T2 hyperintense, no contrast enhancement unless infected
- Clinical: 25% suprahyoid, 50% hyoid, 25% infrahyoid
Radiology Cases of Thyroglossal Duct Cyst

Clinical Cases of Thyroglossal Duct Cyst
