Surgical therapy of thyroid diseases utilizes a collar-shaped transverse cervicotomic access. However, this access can be insufficient for a complete execution of operating plan. The authors suggest sternum thoracic and laterocervical enlargement of the operative filed. These two enlargements present several advantages and don't expose the patient to greater postoperative complications. Moreover, the surgeon can operate with higher safety in controlling inferior instestinal peduncolar and recurrent nerve. In case of latero-cervical access a complete dissection of neck is also possible.