XXXX , @entity189 , and @entity1053 counts in amosite @entity1355 workers. A study of six cases.

@entity1 @entity82 @entity2 @entity3794 @entity189 @entity1053 @entity1355
The Tyler Asbestos Workers Program is a continuing study of 1,105 former amosite @entity1355 workers. This report includes a study of six former workers, five of whom died and had autopsies, and one who underwent a lobectomy. Five of these @entity1 were exposed to @entity1355 for three months or less. Four had @entity2 , and one a @entity189 . All were cigarette smokers. Ferruginous ( @entity1355 ) body content of the upper and lower lobes of the lungs was quantitated by a digestion technic. Tissue sections from upper and lower lobes were independently quantitated for @entity82 and ferruginous bodies, and chest roentgenograms were examined for interstitial @entity82 . (Control lung tissue was obtained from consecutive autopsies of 52 adults who did not have a known occupational exposure to @entity1355 .) Relatively low @entity1053 counts (less than 700/g lung tissue) were associated with mild degrees of @entity82 , and higher counts (greater than 10,000/g) with moderate to severe @entity82 . Mild to moderate @entity3794 could be identified on tissue sections before interstitial changes were detectable by chest roentgenograms.
