In 198 randomized autopsies of adults, hyaline pleural plagues were found in 49 men and 17 women; bilateral in 47 cases, unilateral in 19. No correlation between previous pr present pulmonary disease and hyaline plaques was found. Asbestos bodies were found in nine men and five women; nine out of these 14 cases with asbestos bodies also had hyaline pleural plaques.
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