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Patient 1. Transversal (a) and longitudinal (b) scans of the hypoechogenic thyroid gland revealed formation of the nodule 5 years since referral and 4 8/12 years since last ultrasound assessment. The growth of the nodule was fast from 8.1 × 9.5 × 13.1 mm to 10.8 × 10.4 × 16.4 mm in 6 months (82% increase). During follow-up, the echogenicity of the thyroid gland increased
