Stage I Paranasal Sinus Cancer

**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. 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:** - Paranasal Sinus Cancer Stage I - Stage I Accessory Sinus Carcinoma - Stage I Carcinoma of Accessory Sinus - Stage I Carcinoma of Paranasal Sinus - Stage I Carcinoma of the Accessory Sinus - Stage I Carcinoma of the Paranasal Sinus - Stage I Paranasal Sinus Cancer AJCC v6 - Stage I Paranasal Sinus Cancer AJCC v7 - Stage I Paranasal Sinus Carcinoma