label: Thyroid Cancer pT4 TNM Finding v6
label_lc: thyroid cancer pt4 tnm finding v6
description: "Thyroid cancer with any size tumor extending beyond the thyroid gland capsule to invade subcutaneous soft tissues, larynx, trachea, esophagus, recurrent laryngeal nerve, prevertebral fascia, or encasing the carotid artery or mediastinal vessels. All anaplastic carcinomas are also classified as pT4, with separate subclassification. (from AJCC 6th Ed.)"