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Patient 2. Transversal (a) and longitudinal (b) scans of the hypoechogenic thyroid gland revealed the formation of the nodule 1 9/12 years since referral and 10/12 months since last ultrasound assessment. The growth of the nodule was fast from 5.4 × 4.7 × 4.2 mm to 6.5 × 4.7 × 6.7 mm in 1 month (92% increase). During follow-up, the echogenicity of the thyroid gland increased
