case_images: PMC11263775_01
case_images: Ultrasound image of the neck demonstrating absent thyroid gland in its usual location
case_images: aojnmb-02-179-g001.jpg
case_images: PMC11263775_01_aojnmb-02-179-g001.jpg
case_images: F1
case_images: Subsequent neck ultrasonography conducted using a linear array transducer (10-15 MHz), revealed the absence of thyroid gland tissue from its expected site (Figure 1).
case_images: Thyroid scan with Technetium-99m revealing tracer uptake at three different levels other than the normal thyroid gland location (Anterior, and bilateral obliques images). Starting inferiorly, the first focus just below the level of the hyoid bone (infra-hyoid), the second focus was situated between the geniohyoid and mylohyoid muscles (sublingual), and the third presented as a small focus with faint uptake at the base of the tongue (lingual)
case_images: aojnmb-02-179-g002.jpg
case_images: PMC11263775_01_aojnmb-02-179-g002.jpg
case_images: F2
case_images:  The largest focus was observed on the right side just below the level of the hyoid bone (infra-hyoid), the second focus was situated between the geniohyoid and mylohyoid muscles (sublingual), and the third presented as a small focus with faint uptake at the base of the tongue (lingual) (Figure 2).
case_images: Axial non-contrast computed tomography and SPECT images showing hyperdense foci at (A) right infra-hyoid, (B) sublingual and (C) lingual regions (red arrow)
case_images: aojnmb-02-179-g003.jpg
case_images: PMC11263775_01_aojnmb-02-179-g003.jpg
case_images: F3
case_images: On the non-contrast SPECT images, the ectopic thyroid tissue appeared hyperdense (Figure 3).