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