Ectopic localization of the thyroid gland is an embryologic anomaly that occurs in the process of thyroid migration. When imaging is needed, MRI is one of the imaging modalities that can be used to visualize lingual thyroid. Some potential MRI findings associated with lingual thyroid may include:

1. Hyperintense signal on T2-weighted images: Lingual thyroid tissue may appear hyperintense (bright) on T2-weighted MRI images, indicating increased water content.
2. Isointense or hypointense signal on T1-weighted images: Lingual thyroid tissue may appear isointense (similar intensity) or hypointense (darker) on T1-weighted MRI images, compared to surrounding muscle tissue.
3. Abnormal location: MRI may show the presence of thyroid tissue in an abnormal location within the tongue, typically located at the base or posterior aspect of the tongue.
4. Absence or atrophy of thyroid tissue in the normal location: MRI may show an absence or atrophy of the thyroid gland in its normal location in the neck, which may suggest compensatory hypertrophy of the lingual thyroid.