Fig. 19
From: Thyroid computed tomography imaging: pictorial review of variable pathologies
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 (white arrow). c Axial enhanced neck CT scan at the level of the thyroid cartilage demonstrates a slightly off-midline, well-defined, homogeneous cystic lesion embedded in the left strap muscle with peripheral enhancement (white arrow). It shows no calcification or internal enhancement. Thyroid gland was normal (not shown)