Brazilian Journal of Pulmonology

ISSN (on-line): 1806-3756 | ISSN (printed): 1806-3713

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Hard metal lung disease: a case series

Doença pulmonar por metal duro: uma série de casos

Rafael Futoshi Mizutani1, Mário Terra-Filho1,2, Evelise Lima1, Carolina Salim Gonçalves Freitas1, Rodrigo Caruso Chate3, Ronaldo Adib Kairalla1,2, Regiani Carvalho-Oliveira4, Ubiratan Paula Santos1

J Bras Pneumol.2016;42(6):447-452

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Objective: To describe diagnostic and treatment aspects of hard metal lung disease (HMLD) and to review the current literature on the topic. Methods: This was a retrospective study based on the medical records of patients treated at the Occupational Respiratory Diseases Clinic of the Instituto do Coração, in the city of São Paulo, Brazil, between 2010 and 2013. Results: Of 320 patients treated during the study period, 5 (1.56%) were diagnosed with HMLD. All of those 5 patients were male (mean age, 42.0 ± 13.6 years; mean duration of exposure to hard metals, 11.4 ± 8.0 years). Occupational histories were taken, after which the patients underwent clinical evaluation, chest HRCT, pulmonary function tests, bronchoscopy, BAL, and lung biopsy. Restrictive lung disease was found in all subjects. The most common chest HRCT finding was ground glass opacities (in 80%). In 4 patients, BALF revealed multinucleated giant cells. In 3 patients, lung biopsy revealed giant cell interstitial pneumonia. One patient was diagnosed with desquamative interstitial pneumonia associated with cellular bronchiolitis, and another was diagnosed with a hypersensitivity pneumonitis pattern. All patients were withdrawn from exposure and treated with corticosteroid. Clinical improvement occurred in 2 patients, whereas the disease progressed in 3. Conclusions: Although HMLD is a rare entity, it should always be included in the differential diagnosis of respiratory dysfunction in workers with a high occupational risk of exposure to hard metal particles. A relevant history (clinical and occupational) accompanied by chest HRCT and BAL findings suggestive of the disease might be sufficient for the diagnosis.

 


Keywords: Lung diseases, interstitial; Cobalt; Tungsten; Occupational exposure; Hard metal.

 


Eosinophilic pneumonia: remember topical drugs as a potential etiology

Pneumonia eosinofílica: lembre-se de medicamentos tópicos como possível etiologia

Olívia Meira Dias1,a, Ellen Caroline Toledo do Nascimento2,b, Rodrigo Caruso Chate3,c, Ronaldo Adib Kairalla1,d, Bruno Guedes Baldi1,e

J Bras Pneumol.2018;44(6):522-524

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