Thyroid hormones and TSH levels (Figure 1) were consistent with neonatal hyperthyroidism (fT3 19.9 pg/ml (n.v. 2.3-4.2), fT4 >75 pg/ml (n.v. 8.5-15.5), TSH 0.03 UI/ml (n.v. 0.35-8)). This evidence concerns the gene TG and hyperthyroidism.