Stage I Nasopharyngeal Undifferentiated Carcinoma AJCC v7

**Semantic type:** Neoplastic Process

**Definition:** 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.)

**Synonyms:** - Nasopharyngeal Undifferentiated Carcinoma Stage I - Stage I Lymphoepithelioma of Nasopharynx - Stage I Lymphoepithelioma of the Nasopharynx - Stage I Nasopharyngeal Lymphoepithelioma - Stage I Nasopharyngeal Undifferentiated Carcinoma - Stage I Undifferentiated Nasopharyngeal Throat Cancer