Stage II Thyroid Gland Papillary Carcinoma 55 Years and Older AJCC v8

**Semantic type:** Neoplastic Process

**Definition:** Stage II includes: (T1, N1, M0); (T2, N1, M0); (T3a/T3b, Any N, M0). T1: Tumor measuring 2 cm or less in greatest dimension limited to the thyroid. T2: Tumor measuring more than 2 cm but 4 cm or less in greatest dimension limited to the thyroid. T3a: Tumor measuring more than 4 cm in greatest dimension limited to the thyroid. T3b: Gross extrathyroidal extension invading only strap muscles (sternohyoid, sternothyroid, thyrohyoid, or omohyoid muscles) from a tumor of any size. N1: Metastasis to regional nodes. M0: No distant metastasis. (from AJCC 8th Ed.)

**Synonyms:** - II 55 Years and Older - Stage II Thyroid Gland Papillary Cancer 55 Years and Older