Paranasal Sinus Squamous Cell Carcinoma

**Semantic type:** Neoplastic Process

**Definition:** A squamous cell carcinoma that arises from the mucosal epithelial surface of the ethmoid, frontal, maxillary, or sphenoid sinus. Patients may present with nasal fullness, obstruction, and/or epistaxis.

**Synonyms:** - Epidermoid Carcinoma of Paranasal Sinus - Epidermoid Carcinoma of the Paranasal Sinus - Paranasal Sinus Epidermoid Carcinoma - Squamous Cell Carcinoma of Paranasal Sinus - Squamous Cell Carcinoma of the Paranasal Sinus