Non-smoking Chronic Obstructive Pulmonary Disease Attributed to Occupational Exposure to Silica Dust.

作者: Kazuo Tsuchiya , Mikio Toyoshima , Yosuke Kamiya , Yutaro Nakamura , Satoshi Baba

DOI: 10.2169/INTERNALMEDICINE.56.7577

关键词:

摘要: An 85-year-old, never-smoking man presented with exertional dyspnea. He had been exposed to silica dust in the work place. Chest computed tomography revealed bronchial wall thickening without emphysema. A pulmonary function test showed airflow obstruction impaired gas transfer. Airway hyperresponsiveness and reversibility were not evident. transbronchial lung biopsy findings suggestive of mineral exposure, such as fibrosis slight pigmentation bronchioles. was diagnosed non-smoking chronic obstructive disease (COPD) due occupational exposure dust. His symptoms improved using an inhaled long-acting bronchodilator. The clinical characteristics COPD are discussed this report.

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