Non-inclusion criteria
Tumors, analysisMedullary thyroid carcinoma, non-papillary thyroid carcinoma, mmTumors
TUMORS, NERVE PARALYSIS, METASTASES

Tumors > 40 mm (cT3) or ≤ 10 mmTumors with extrathyroidal extension suspected or obvious on the preoperative work-up or intra-operatively (cT3T4)Metastatic neck lymph nodes or suspicious neck nodes on preoperative ultrasound (cN1); for suspicious nodes, FNAB cytology and thyroglobulin assay on the needle washout fluid will be performedMetastatic neck lymph nodes found during the thyroidectomy and confirmed with intra-operative frozen section analysisMedullary thyroid carcinoma on FNAB cytology and/or with basal serum calcitonin >50 pg/mlPreoperative or intra-operative suspicion of non-papillary thyroid carcinoma or aggressive histopathological subtype or poorly differentiated carcinomaDistant metastases (M1) apparent preoperatively (found due to symptoms or fortuitously; no specific preoperative work-up will be performed, however, in accordance with current clinical practice)Recurrent nerve paralysis visualized on systematic preoperative laryngoscopy and/or abnormal preoperative serum calciumPregnant or breast feeding womenParticipation in another therapeutic clinical trial within 1 year from study entryPatient under guardianship or deprived of their liberty by a judicial or administrative decision or incapable of giving their consent