Treatment of medullary thyroid carcinoma with apatinib: A case report and literature review.

AbstractRationale:Medullary thyroid carcinoma (MTC) is a rare type thyroid carcinoma originating from the thyroid parafollicular cells (C cells). Chemotherapy has a limited efficacy for treating persistent or recurrent MTC.Patient concerns:A 46-year-old woman who underwent thyroidectomy for MTC in D