label: Stage I Nasopharyngeal Carcinoma AJCC v7
label_lc: stage i nasopharyngeal carcinoma ajcc v7
description: "Stage I includes: T1, N0, M0. T1: Nasopharyngeal cancer with tumor confined to the nasopharynx, or tumor extending to oropharynx and/or nasal cavity without parapharyngeal extension.  Parapharyngeal extension denotes posterolateral infiltration of tumor. N0: No regional lymph node metastasis.  M0: No distant metastasis. (AJCC 7th ed.)"