Mycobacterium gordonae-induced humidifier lung

BMC Pulmonary Medicine

Makoto Nagata¹  Minoru Kanazawa¹  Fuyumi Nishihara¹  Yutaka Usui¹  Harue Utsugi¹ 

[1] Department of Respiratory Medicine, Saitama Medical University, Morohongo 38, Moroyama-machi, Iruma-gun, Saitama, Japan

关键词: Provocation test;    Ultrasonic humidifier;    Nontuberculous mycobacteria;    Hypersensitivity pneumonitis;   

Others  :  1228332
DOI  :  10.1186/s12890-015-0107-y

 received in 2015-04-21, accepted in 2015-09-21,  发布年份 2015

【 摘 要 】

Background

Nontuberculous mycobacteria are well known to be a cause of hot tub lung, however, to our knowledge, there exists no case report of humidifier lung induced by mycobacteria.

Case presentation

A case of a nonimmunocompromised female patient with Mycobacterium gordonae-induced humidifier lung is described. She spontaneously recovered after discontinuing ultrasonic humidifier use. When subjected to a provocation test, she demonstrated acute respiratory distress with signs and symptoms, consistent with hypersensitivity pneumonitis. Before and after the provocation test, water in the humidifier reservoir revealed only Mycobacterium gordonae by the microbiologic analyses.

Conclusion

To our knowledge, this is the first report of humidifier lung induced by nontuberculous mycobacteria. Although nontuberculous mycobacteria are well-known to be agents of hot tub lung or metal working fluid lung, physicians should also consider the pathogen as a cause of hypersensitivity lung reaction associated with humidifier use.

【 授权许可】

   
2015 Utsugi et al.

【 图 表 】

Fig. 1.

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