The incidence of maxillary sinus carcinoma in nasal mass

The external nose is pyramidal in shape with its root above and base directed downwards. The framework is composed of bones and cartilages. The bones are the two nasal bones articulating medially. Laterally they articulate with the frontal process of maxilla, superiorly to the medial part of nasal notch of frontal bone and inferiorly to the lateral cartilage of nose and posteriorly with the perpendicular plate of ethmoid bone. Considering the malignant conditions of nose &   PNS, the most common issq.  cell carcinoma of maxillary sinus (37.S°lc>), followed by S. q cell carcinoma of nose (25%), and then Adenocarcinoma of maxillary sinus (1 2.5%), Sq. cell carcinoma of Ethmoid sinus (12.5%) & adenoid cystic carcinoma of maxillary sinus (12.5°/o) These findings are comparable with reports of Cheesman (1957) , who had noted that Sq. cell carcinoma comprised of 80% of cases & Bahadur et al (1984), who reported that most common was Sq. cell carcinoma (65%).Followed by  adenocysticcarcinoma (12%), Adinocarcinoma (12%) Meliginate lanoma (2%) olfactory neuroblastoma(2%)