PMID: 16512339Mar 4, 2006Paper

Sino-nasal inverted papillomas and occupational etiology

Giornale italiano di medicina del lavoro ed ergonomia
Pietro Gino BarbieriC Fernicola

Abstract

The sino-nasal inverted papilloma is a rare benign tumour with certain aggressive features because of frequent relapses and the high probability of malignant degeneration. For these reasons, several studies have been made to evaluate the efficacy of the different courses of treatment, but only afew studies have been carried out to establish the etiology of this tumour, which is still uncertain. Although it is believed that viral infection, chronic inflammation and cigarette smoking can play an important etiological role, it has recently been suggested that occupational risk factors, such as those involved in malignant epithelial sino-nasal cancer (SNC), can also be involved in causing sino-nasal inverted papilloma. A group of 70 patients was examined who have been diagnosed with inverted papilloma from 1991 to 2003; the occupational history, collected via the standardized questionnaire, showed that risk factors like wood and leather dusts, chromium and nickel vapours or fumes and formaldehyde were associated with only 5% of all cases. This proportion is much lower than that established for SNC in several epidemiological studies. Although occupational environmental pollution can be a source of chronic sino-nasal mucosa irritatio...Continue Reading

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