No abstract available.
Pneumoconiosis*

Pneumoconiosis

No abstract available.
Humans ; Pneumoconiosis*

No abstract available.
Korea* ; Pneumoconiosis*

No abstract available.
Pneumoconiosis* ; Thorax*

No abstract available.
Pneumoconiosis* ; Welding*

To obtain the basic information that can be used as a factor for explaining the diversity of welders' pneumoconiosis, the authors measured the concentrations of dust according to the size of dust in 71 workplaces of a shipyard where welders' pneumoconiosis have occurred. The concentrations of dust according to the size of dust showed no difference between workplaces regardless of kinds of work.
Dust* ; Pneumoconiosis

BACKGROUND: Bronchial anthracofibrosis (BAF) is a dark black or brown pigmentation of multiple large bronchi associated with a fibrotic stenosis or obliteration that is incidentally found during a diagnostic bronchoscopy. Some reporters have suggested endobronchial tuberculosis or tuberculous lymphadenitis as a possible cause of BAF. However, some BAF patients do not have any medical history of tuberculosis. The aim of this study was to elucidate the clinical features of simple BAF patients, which were not associated with tuberculosis. METHODS: We reviewed the patients' charts retrospectively and interviewed all BAF patients who were followed up for 1 year or more. Among the 114 BAF patients, 43 patents (38 %) had no associated tuberculosis, cancer and pneumoconiosis. The clinical characteristics, radiological findings and associated pulmonary diseases of these patients were evaluated. RESULTS: Most patients were non-smokers, old aged, housewifes who resided in a farming village. The common respiratory symptoms were dyspnea, cough and hemoptysis. The predominant X-ray findings were a multiple bronchial wall thickening(89%), bronchial narrowing or atelectasis (76%) and a mediastinal lymph node enlargement with/without calcification (78%). Pulmonary function test usually showed mild obstructive ventilatory abnormalities but no patient showed a restrictive ventilatory pattern and the patients were frequently affected with chronic bronchitis(51%), post-obstructive pneumonia(40%) and chronic asthma(4%). CONCLUSION: Because BAF is frequently associated with chronic bronchitis and obstructive pneumonia as well as tuberculosis, a careful clinical evaluation and accurate differential diagnosis is more essential than empirical anti-tuberculous medication.
Diagnosis, Differential ; Pneumoconiosis

No abstract available.
Diatomaceous Earth* ; Pneumoconiosis*

Studying on clinical symptoms and respiratory function of 83 workers above 5 years professional age (86% male and 14% female) showed that there are predominantly 2 functional symptoms: chest pain and dipnoea, then sputum, cough and hemoptisis, two physical symptoms of deformity of the chest, vesicular murmur, were of higher rate. The incidence of respiratory total dysfunction accounts for 38.6% in workers. The incidence of silico-pneumoconiosis is 9.6%, mild form is common in most of workers
Pneumoconiosis ; manpower ; Occupational Diseases