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  • Title: A possible case of pneumoconiosis in a limestone quarry worker.
    Author: Crummy F, Carl I, Cameron CH, Heaney LG.
    Journal: Occup Med (Lond); 2004 Oct; 54(7):497-9. PubMed ID: 15486183.
    Abstract:
    BACKGROUND: A 43-year-old man presented with wheeze and shortness of breath. He had an occupational history of working in a limestone quarry. Pulmonary function testing revealed a mixed obstructive/restrictive defect. Chest X-ray revealed nodular shadowing throughout both lung fields. METHODS: Subsequent thoracoscopic lung biopsy was performed and histology of the nodules revealed a foreign body granulomatous reaction with numerous fluorescent particles seen under polarized light. There was no evidence of interstitial fibrosis. RESULTS: Energy dispersive X-ray analysis (EDXA) scanning confirmed that these particles contained calcium, aluminium and silicon and had a composition consistent with limestone. CONCLUSIONS: This case demonstrates a possible unusual reaction to inorganic dust particles without resultant fibrosis.
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