Endocrine Abstracts

Introduction: American Thyroid Association (ATA) guidelines suggest considering hemithyroidectomy in patients with unifocal well-differentiated thyroid tumours,smaller than 4 cm, withoutpreoperative evidence of extrathyroidal extension (ETE) nor lymph node metastases. Although multifocal microcarcinomas are considered to increase the risk of structural disease recurrence from 1%–2% to 4%–6% compared to unifocal microcarcinomas, the ATA guidelines do not sugges...