Sinonasal Keratinizing Squamous Cell Carcinoma

**Semantic type:** Neoplastic Process

**Definition:** A squamous cell carcinoma that arises from the mucosal epithelium of the nasal cavity or the paranasal sinuses and is characterized by prominent production of keratin.

**Synonyms:** - Nasal Cavity and Paranasal Sinus Keratinizing Squamous Cell Carcinoma