Awide range of pulmonary pathology is attributed to aluminum dust exposure, including interstitial fibrosis,1-5 desquamative interstitial pneumonia,6 and pulmonary alveolar proteinosis.7 To our knowledge,granulomatous lung disease induced by aluminum dust is rare, only two cases were reported in literatures.8,9 We had the opportunity to make a diagnosis of pulmonary sarcoid-like granulomatosis in a patient exposed to aluminum dust. Herein, we report the clinical history,radiographic and histopathological findings in this patient,and the detailed mineralogical analyses performed on lung tissue obtained by open lung biopsy.