Patient History
Localized swelling. Mass in neck.
Findings
Contrast-enhanced CT of the neck was performed from the skull base to the thoracic inlet. Study demonstrates an approximately 1.2cm x 9mm x 1.9cm cystic lesion that is located in the anterior neck and embedded in the left strap muscles at the level of the thyrohyoid membrane. The lesion extends superiorly and abuts the undersurface of the body of the hyoid bone. These findings are consistent with a thyroglossal duct cyst. Both lobes of the thyroid gland are present.
No evidence of enlarged lymph nodes are seen using standard size criteria. Prominence of the adenoidal tissue in Waldeyer's ring which can be normal in this age group. No evidence of aggressive visceral space masses are identified.
Visualized portion of the brain is grossly within normal limits. However, dedicated brain imaging is necessary for complete diagnostic evaluation.
Imaging of the lungs is within normal limits. However, dedicated CT of the chest is necessary for complete diagnostic evaluation.
Conclusions
1. Findings consistent with left thyroglossal duct cyst embedded in the left strap muscles with a small component extending superiorly that abuts the undersurface of the body of the hyoid bone.
2. No definite evidence of aggressive lesions involving the visceral space.
