Abstract
A 68-year-old male presented with cough and sputum. He had suffered from these symptoms for ten years prior to admission. Chest roentgenogram revealed reticulonodular shadows in the lower fields of both lungs. CT scan of the chest revealed an interstitial pattern in the lower field of both lungs. Honeycombing and bullous pattern were also present in the subpleural area. The patient had a history of dust and asbestos inhalation while working as an electrician. Eosinophilia of the peripheral blood and BALF, and a slightly increased serum IgE concentration were noted. Open lung biopsy revealed interstitial fibrosis with intra-alveolar macrophage accumulation and asbestos bodies. The histopathological features resembled UIP and DIP, although DIP is uncommon in pulmonary asbestosis. The slightly increased serum IgE concentration was considered to be an additional effect of asbestos. This is a case of pulmonary asbestosis with intriguing immunological and histopathological features.
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