Malignant neoplasm affecting the mucosa of the nose, sinuses, pharynx; associated with exposure to carcinogens such as tobacco, emission products of biomass fuels, formaldehyde fumes inhaled by those in occupations such as woodworking and mortuary work. Another important cause is infection with the Epstein-Barr virus (EBV). EBV is a mosquito-borne virus and therefore nasopharyngeal cancer (affecting lymphatic tissue) due to EBV has a pronounced geographical distribution that correlates with the distribution of the mosquito vectors, notably in Central Africa, where the association was first identified. See Burkitt's lymphoma.
Subjects: Public Health and Epidemiology.