Anaplastic thyroid carcinoma combined with sclerosing mucoepidermoid carcinoma with eosinophilia

Anaplastic thyroid carcinoma (ATC) is a rare highly aggressive thyroid malignancy. Thyroid sclerosing mucoepidermoid carcinoma with eosinophilia is also a rare low grade malignant thyroid neoplasm. To date, comorbidity of these 2 tumors in the thyroid gland has not been reported in the English literature.Here, we present a case of a 67-year-old women with a 6-month history of mass of left neck. She complained of a painless mass in the right...