label: Stage IB Lung Squamous Cell Carcinoma AJCC v7
label_lc: stage ib lung squamous cell carcinoma ajcc v7
description: Stage IB includes: T2a, N0, M0.  T2a: Lung cancer with a tumor size more than 3 cm but 5 cm or less in greatest dimension.  N0: No regional lymph metastasis.  M0: No distant metastasis. (AJCC 7th ed.)