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Cancer in the paranasal sinuses and nasal cavities in a relatively rare tumor disease, with an annual incidence of about one case per 100,000 inhabitants in Europe and the United States.1 The majority of these tumors start in the mucous membrane of the maxillary antrum or the ethmoid labyrinth. A few cases originate from the nasal cavities, while primary cancers in the sphenoid and frontal sinuses are extremely rare. The age-specific incidence of the disease continuously increases with age; it is predominately a disease of the middle aged and aging.
The only known etiologic factor of some importance in antral carcinoma is chronic sinusitis. Long-standing sinusitis causes a squamous cell metaplasia of the respiratory epithelium, which probably is the origin of most antral cancers. Some patients have a long history with signs of chronic sinusitis, prior to the signs of progressive tumor.
Squamous cell carcinoma is the most frequent
Larsson L, Mårtensson G. Maxillary Antral Cancers. JAMA. 1972;219(3):342-345. doi:10.1001/jama.1972.03190290036011