[Pleural plaques and an asbestos environment in Northern Corsica].

As opposed to North-West Corsica, North-East Corsica is rich in asbestos outcrops and a source of environmental pollution as can be seen in the airborne concentration of chrysotile and above all tremolite. We have composed the frequency of asbestos pleural plaques occurring in subjects in the two regions starting with a retrospective analysis of the radiological records of 1,721 patients born in Northern Corsica and having no occupational exposure to asbestos. The frequency is 3.8% in the North-East and 1.1% in the North-West (p less than 5%). The relative East-West risk, which is 3.3%, shows the existence of a link between pleural plaques and environmental exposure to asbestos in North-East Corsica.