Background: Dental technicians are potentially exposed to various occupational dusts and chemicals. Not surprisingly, occupational related lung diseases have been documented in this population.
Methods: We describe the case of a dental laboratory technician presenting progressive exertional dyspnea and cough. We used lung function tests, computed tomography, histological examination, mineralogical and immunological studies to characterize his condition.
Results: Lung function studies disclosed a restrictive pattern with a low diffusion capacity. A high-resolution CT scan revealed the presence of micronodules in both lungs corresponding to non-caseating foreign body granulomas at histological examination. Mineralogic studies showed the presence of silica, silicates, and aluminum. The lymphocytic transformation test was positive with the bronchoalveolar lavage for beryllium.
Conclusions: This dental technician developed pulmonary granulomatosis. Combined histological, mineralogical, and immunological studies led us to consider the diagnosis of pneumoconiosis most likely related to occupational exposure to beryllium and aluminum.
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