N Concordance 1 cal medullary carcinoma (TMC), atypical medullary carcinoma (AMC) and non-medull 2 vatives and are the cells of origin for medullary carcinoma of the thyroid gland 3 rcinomas were reclassified into typical medullary carcinoma (TMC), atypical medu 4 ernatively, some might be confused with medullary carcinoma of the breast or ade 5 lary thyroid cancer. All patients with medullary carcinoma of the thyroid (whe 6 lead to a false-positive diagnosis of medullary carcinoma, DNA testing for the 7 that is produced by thyroid C cells and medullary carcinoma. It is also widely d 8 e tumors to the thyroid gland mimicking medullary carcinoma: a pathologic and im 9 Tavassoli and the Ridolfi criteria for medullary carcinomas. Sixty breast carci