label: Stage I Nasopharyngeal Carcinoma AJCC v6
label_lc: stage i nasopharyngeal carcinoma ajcc v6
description: Stage I includes: T1, N0, M0. T1: Tumor confined to the nasopharynx. N0: No regional lymph node metastasis.  M0: No distant metastasis. (AJCC 6th ed.)