“…The majority of RCCs are immunoreactive to keratin and epithelial membrane antigen (EMA), often stain positive for CD10, and some may also stain positive for vimentin (15). Surgical resection is regarded as the best treatment for solitary thyroid metastases, especially when the primary tumor is controlled and is associated with good prognosis (10,16). There is no clear consensus about the extent of operation in thyroid surgery because of the complications after total thyroidectomy.…”