Stage I Sinonasal Squamous Cell Carcinoma AJCC v6 and v7

**Semantic type:** Neoplastic Process

**Definition:** Stage I includes: T1, N0, M0. T1: Maxillary sinus: Tumor limited to the maxillary sinus mucosa with no erosion or destruction of bone. Nasal cavity and ethmoid sinus: Tumor restricted to any one subsite, with or without bony invasion. N0: No regional lymph node metastasis. M0: No distant metastasis. (AJCC 6th and 7th eds.)

**Synonyms:** - Stage I Nasal Cavity and Paranasal Sinus Squamous Cell Cancer - Stage I Nasal Cavity and Paranasal Sinus Squamous Cell Carcinoma - Stage I Nasal Cavity and Paranasal Sinus Squamous Cell Carcinoma AJCC v6 - Stage I Nasal Cavity and Paranasal Sinus Squamous Cell Carcinoma AJCC v6 and v7 - Stage I Nasal Cavity and Paranasal Sinus Squamous Cell Carcinoma AJCC v7