TOPICS: Asbestosis, restrictive lung disease, shipbuilding, roofing, plumbing, bronchogenic lung cancer, mesothelioma, barbell shaped fibres, pleural opacities, berylliosis, aerospace, nuclear weapons, lung cancer, cor pulmonale, non-caseating granulomas, coal worker's pneumoconioses, coal mining, black lung, anthracosis, caplan syndrome, micronodular opacities, silicosis, sandblasting, silica mining, TB, birefringent silica particles, egg shell calcification