Frontal Sinus Squamous Cell Carcinoma

**Semantic type:** Neoplastic Process

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

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