label: Stage III Lung Squamous Cell Carcinoma AJCC v7
label_lc: stage iii lung squamous cell carcinoma ajcc v7
description: Stage III includes: IIIA (T1a, N2, M0); (T1b, N2, M0); (T2a, N2, M0); (T2b, N2, M0); (T3, N1, M0); (T3, N2, M0); (T4, N0, M0); (T4, N1, M0) and IIIB (T1a, N3, M0); (T1b, N3, M0); (T2a, N3, M0); (T2b, N3, M0); (T3, N3, M0); (T4, N2, M0); (T4, N3, M0).  T4: Lung cancer with a tumor of any size that invades any of the following: mediastinum, heart, great vessels, trachea, recurrent laryngeal nerve, esophagus, vertebral body, carina, and separate tumor nodule(s) in a different ipsilateral lobe.  N1: Lung cancer with metastasis in ipsilateral peribronchial and/or ipsilateral hilar lymph nodes and intrapulmonary lymph nodes, including involvement by direct extension.  N2: Lung cancer with metastasis to ipsilateral mediastinal and/or subcarinal lymph nodes.  N3: Lung cancer with metastasis to contralateral mediastinal, contralateral hilar, ipsilateral or contralateral scalene, or supraclavicular lymph nodes.  M0: No distant metastasis. (AJCC 7th ed.)