Asbestos Exposure and Neoplasia

摘要: Building trades insulation workers have relatively light, intermittent, exposure to asbestos. Of 632 workers, who entered the trade before 1943 and were traced through 1962, forty-five died of cancer lung or pleura, whereas only 6.6 such deaths expected. Three pleural tumors mesotheliomas; there was also one peritoneal mesothelioma. Four mesotheliomas in a total 255 is an exceedingly high incidence for rare tumor. In addition, unexpectedly large number men stomach, colon, rectum (29 compared with 9.4 expected). Other cancers not increased; 20.5 expected, 21 occurred. Twelve asbestosis.