NCIt related terms : Stage III Differentiated Thyroid Gland Cancer;
NCIt definition : Stage III includes: 55 years and older: T4a, Any N, M0. T4a: Gross extrathyroidal
extension invading subcutaneous soft tissues, larynx, trachea, esophagus, or recurrent
laryngeal nerve from a tumor of any size. M0: No distant metastasis. (from AJCC 8th
Ed.);