Endocrine follow-up
THYROID
All patients attended regular endocrinological follow-up at T1 and T2, according to standard clinical practices. After surgery all patients were treated with levothyroxine at replacement or mildly TSH-suppressive doses according to a benign or malignant histology. Thyroid function parameters were measured at 40–60 days and at 12 months after surgery in all patients. Patients who, on the basis of the 40–60 days post-surgery TSH levels, required levothyroxine dose adjustments were further tested for thyroid function parameters two months later.