Bronchial anthracofibrosis with interstitial lung disease: an association yet to be highlighted

Bronchial anthracofibrosis (BAF), an emerging pulmonary disease due to long-standing exposure to biomass fuel smoke, is predominantly seen in females from developing nations. BAF is known to be associated with tuberculosis, pneumonia, chronic obstructive pulmonary disease and lung cancer, but the association of BAF with interstitial lung disease (ILD) is rare and yet to be highlighted. A 72-year-old woman with a 30-year history of exposure to biomass fuel smoke presented with dry cough and exertional dyspnoea. Imaging demonstrated interlobular, intralobular and peribronchovascular interstitial thickening and honeycombing adjoining the subpleural regions, suggestive of the usual interstitial pneumonia pattern. A restrictive pattern with diffusion defect was noted. Fibrebronchoscopy revealed a bluish-black anthracotic pigmentation with a narrowed and distorted left upper lobe, and apical segment of left lower lobe bronchus, confirming BAF. A diagnosis of BAF with ILD was made. To the best of our knowledge, this is the first detailed description of this association.

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