Ectopic Cervical Thymus in an Adult: A Rare Presentation

Area of Science:

• Embryology
• Radiology
• Head and Neck Imaging

Background:

• Ectopic cervical thymus is a rare congenital anomaly resulting from aberrant descent of the thymus during embryological development.
• While typically found in children, its occurrence in adults is exceedingly rare, often presenting diagnostic challenges.

Observation:

• This case report details a 44-year-old male with an incidentally discovered ectopic cervical thymus.
• High-resolution ultrasonography was utilized to visualize the lesion in the neck.

Findings:

• The sonological appearance of the ectopic cervical thymus was characteristic, aiding in its identification.
• Key ultrasound features included well-defined margins, heterogeneous echotexture, and vascularity consistent with thymic tissue.

Implications:

• Accurate and early diagnosis of ectopic cervical thymus via ultrasonography is crucial.
• This can prevent misdiagnosis, unnecessary invasive procedures, and patient anxiety associated with neck masses.