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Conventional ultrasound and elastography images of nodular goiter.
Note: Central nodules in the right lobe of the thyroid gland, 1A: conventional ultrasound examination found clear boundary (0 point), extremely low echo (2 points), and internally scattered, dotted strong echoes (2 points), and Stacul score: 4 points; 1B: grade II elastography imaging, pathological result: nodular goiter.
