Sinus Neoplasm, Paranasal

Medical Condition:
Sinus Neoplasm, Paranasal

Neoplasms or tumors of the paranasal sinuses. Malignant neoplasms are rare, comprising 3% of all head and neck neoplasms. The majority arise in the maxillary sinus with malignancies of the ethmoid sinus constituting virtually all the remaining tumors.