label: Metastatic Malignant Neoplasm in the Thyroid Gland
label_lc: metastatic malignant neoplasm in the thyroid gland
description: A malignant neoplasm either directly extending to the thyroid gland from adjacent structures (e.g. pharynx, larynx, esophagus, cervical lymph nodes), or spreading to the thyroid gland from distant anatomic sites, most frequently kidney, lung, uterus, breast, and skin.  The majority of cases are carcinomas, lymphomas, and melanomas.