label: Medullary Thyroid Carcinoma pT4b TNM Finding v8
label_lc: medullary thyroid carcinoma pt4b tnm finding v8
description: "Very advanced disease; tumor of any size with extension towards the spine or into nearby large blood vessels, invading the prevertebral fascia, or encasing the carotid artery or mediastinal vessels. (from AJCC 8th Ed.)"