Ramazzini; Blog on work and health by Annet Lenderink

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Long latency and banal symptoms in sinonasal adenocarcinoma

Sinonasal adenocarcinoma is a rare cancer, frequently associated with occupational exposure to inhalable wood dust. This case–control study was aimed at assessing potential risk factors and at characterizing initial clinical symptoms, both serving as matrix to identify persons at increased risk and to improve management of this cancer.

Cases were significantly engaged in mainly woodworking occupations compared to controls. The main initial clinical symptoms were nasal obstruction 6 months (71%) and epistaxis 4 years (41.9%) prior to diagnosis. Hardwood dust from beech and oak proved to be the most common occupational exposure, with a mean exposure period of 32.3 years and a latency of 43.5 (34–58) years.

The researchers conclude  that the study confirms the importance of regular screenings for persons exposed to wood dust even years after the end of occupational or private exposure. Banal clinical symptoms such as epistaxis and nasal obstruction might be predictive, requiring early and thorough investigation.

Characterization of initial clinical symptoms and risk factors for sinonasal adenocarcinomas: results of a case–control study
by Susanne Mayr, Kamber Hafizovic, Frank Waldfahrer, Heinrich Iro, Birgitta Kütting International Archives of Occupational and Environmental Health

Abstract
Purpose: Sinonasal adenocarcinoma is a rare cancer, frequently associated with occupational exposure to inhalable wood dust. Among the EU member States, Germany was reported to have the highest number of exposed workers. Location and long latency make early diagnosis difficult. This case–control study was aimed at assessing potential risk factors and at characterizing initial clinical symptoms, both serving as matrix to identify persons at increased risk and to improve management of this cancer.

Methods: Of 58 patients, 31 diagnosed with sinonasal adenocarcinoma (cases) between 1973 and 2007 were identified and underwent standardized interview on clinical data. A total of 85 patients diagnosed over the same period with carcinoma of the oral cavity served as controls.

Results:  The ethmoid was confirmed as the predominant site of adenocarcinoma associated with wood dust exposure, whereas the nasal cavity was most commonly affected in patients denying any exposure to wood dust.

Cases were significantly engaged in mainly woodworking occupations compared to controls. The main initial clinical symptoms were nasal obstruction 6 months (71%) and epistaxis 4 years (41.9%) prior to diagnosis. Hardwood dust from beech and oak proved to be the most common occupational exposure, with a mean exposure period of 32.3 years and a latency of 43.5 (34–58) years.

Conclusions:  Our investigation confirms the importance of regular screenings for persons exposed to wood dust even years after the end of occupational or private exposure. Banal clinical symptoms such as epistaxis and nasal obstruction might be predictive, requiring early and thorough investigation.

Filed under: Chemical agents, Nose, Occupational cancer, ,

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