NCIt synonyms : Squamous Cell Carcinoma of the Frontal Sinus; Squamous Cell Carcinoma of Frontal Sinus; Frontal Sinus Epidermoid Carcinoma; Epidermoid Carcinoma of the Frontal Sinus; Epidermoid Carcinoma of Frontal Sinus;
NCIt 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.;