PMC9030348_01
(a) High-resolution ultrasonography image demonstrating a well-defined hypoechoic soft-tissue mass with multiple discrete echogenic dots giving a mottled appearance located in the anterior neck. The sonological appearance is typical of ectopic thymus. (b) Color Doppler ultrasonography image demonstrating relative hypovascularity of the anterior cervical soft-tissue mass
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F1
The patient was referred for high-resolution ultrasonography which revealed a well-defined hypoechoic soft-tissue mass lesion measuring 3 cm x 2 cm in size with multiple discrete echogenic dots giving a mottled appearance with minimal vascularity on color Doppler, located in the anterior triangle of the neck, inferior to the left submandibular gland and lateral to the thyroid gland [Figure 1a and b].