case_images: PMC8511904_01
case_images: Thyroid scintigraphy visualizes a circular ectopic thyroid gland at the base of the
  tongue.
case_images: 10.1177_2050313X211050470-fig1.jpg
case_images: PMC8511904_01_10.1177_2050313X211050470-fig1.jpg
case_images: fig1-2050313X211050470
case_images: Technetium (Tc99m) thyroid scintigraphy in the projection of the thyroid gland did not visualize the accumulation of Tc99m but showed the inhomogeneous accumulation of radiopharmaceuticals in the projection of the base of the tongue (Figure 1).
case_images: Magnetic resonance imaging of the neck, sagittal view (T1W) showed a clearly limited
  inhomogeneous nodular mass relative to the lumen of the oropharynx.
case_images: 10.1177_2050313X211050470-fig2.jpg
case_images: PMC8511904_01_10.1177_2050313X211050470-fig2.jpg
case_images: fig2-2050313X211050470
case_images: No pathologically altered lymph nodes in the neck were observed (Figure 2).