[Mesothelioma following occupational contact with asbestos].

From 1975 onwards, mesothelioma is by far the most often seen occupational tumour in Switzerland (about 70%). Between 1969 and 1982, there have been 49 cases registered by the SUVA (Schweizerische Unfallversicherungsanstalt, i.e. Swiss National Accident Insurance Fund). 10 together with asbestosis. Of the first 30 cases, the primary tumour only once was in the peritoneum, in all other cases the tumour always could be located in the pleura. The causative asbestos exposure was found in the production of asbestos cement (9), in the construction and reparation of waggons (6), in the insulation work at chemical plants (5) and in several other industrial work conditions (10). The average exposure time was 21 years. The average interval from exposure to diagnosis 35 years. The survival time after diagnosis about 1 year. Technical prevention consists in substitution of asbestos or elimination of respirable dust (or at least reduction below the TLV). Medical prevention: periodic fitness tests and follow up examinations. New cases should be communicated to the mesothelioma-register in Zurich and to the SUVA, for clarification of the industrial origin.