title: Radiological abnormalities in electric-arc welders.
abstract: Chest radiographs of 661 British electric-arc welders have been examined by three film readers experienced in the radiology of pneumoconiosis. About 7% of the welders showed signs of small rounded opacities of category 0/1 or greater. No definite evidence of large opacities (Progressive Massive Fibrosis) was seen. The prevalence of chest abnormalities other than pneumoconiosis was 7%. A clear association between prevalence of small rounded opacities of category 0/1 or greater and years of exposure to fumes was established, although few signs of severe grades of simple pneumoconiosis were seen.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D004781:Environmental Exposure; D006801:Humans; D008168:Lung / Q000000981:diagnostic imaging*; D008297:Male; D008875:Middle Aged; D009784:Occupational Diseases / Q000000981:diagnostic imaging*; D011009:Pneumoconiosis / Q000000981:diagnostic imaging; D011859:Radiography; D012606:Scotland; D014896:Welding