- Etiology: migration anomaly as thyroid gland migrates down from foramen cecum at the posterior aspect of the tongue to permanent location in infrahyoid neck
- Imaging: thyroid is absent from its normal position in the neck, lingual at base of tongue (90%) / sublingual below the tongue / prelaryngeal / mediastinum (<1%), consider nuclear medicine scan to confirm
Radiology Cases of Ectopic Thyroid
