A well-defined hyperdense lesion centred upon the base of the tongue with postcontrast enhancement. It shows few hypodense nodules. It is seen abutting the epiglottis. The mass encroaches upon the oropharyngeal airway which is relatively narrowed. It is seen surrounded by prominent small arteries and veins (seen within the epiglottis and aryepiglottic folds).
No evidence of thyroid tissue at the anatomical site of the thyroid gland at the base of the neck.