label: Stage IVB Thyroid Gland Anaplastic Carcinoma AJCC v7
label_lc: stage ivb thyroid gland anaplastic carcinoma ajcc v7
description: Stage IVB includes: T4b, Any N, M0.  T4b: Anaplastic carcinoma with gross extrathyroid extension.  M0: No distant metastasis.  (AJCC 7th ed.)