Title: Role of CT in the Evaluation of Sinunasal Masses
Authors: Dr Basanta Manjari Swain, Dr Pradipta Kumar Mishra
DOI: https://dx.doi.org/10.18535/jmscr/v6i2.84
Abstract
Introduction
Malignancies of paranasal sinuses and Nasal cavity account for less than 30% of all the neoplasms of the upper respiratory tract. (Wolfgang Dahnert; Radiology Review Manual; EdnA; page 329). Most frequently involved is the maxillary sinus (80%) followed by ethmoid (10%), frontal & sphenoid (Rare).
The Sinonasal tract plays host to an enormous variety of neoplasm derived from a multitude of tissue types. Epithelial neoplasia may arise from the mucosa, minor salivary tissue or alfactory mucosa.
Approximately 9% of all woman cancer involves the head & neck region. About 3% of which arises from the paranasal sinus and nasal cavities. In the SEER (Surveillance Epidemiology and End Results) data of the National Institute of health (Survey from 1973 to 1987) only 3.6% of their therapy occurred in the Sinonasal tract.
Causes of sinus malignancy are largely unknown. People working in hardwood furniture industry, nickel refines, leather works and manufacturer of mustard gas have shown higher incidence of Sinonasal cancer.
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