Mycobacterium genavense as a cause of subacute pneumonia in patients with severe cellular immunodeficiency

Autor: Rammaert Blandine, Couderc Louis-Jean, Rivaud Elisabeth, Honderlick Patrick, Zucman David, Mamzer Marie-France, Cahen Pierre, Bille Emmanuel, Lecuit Marc, Lortholary Olivier, Catherinot Emilie
Jazyk: angličtina
Rok vydání: 2011
Předmět:
Zdroj: BMC Infectious Diseases, Vol 11, Iss 1, p 311 (2011)
Druh dokumentu: article
ISSN: 1471-2334
DOI: 10.1186/1471-2334-11-311
Popis: Abstract Background Mycobacterium genavense is a rare nontuberculous mycobacteria (NTM). Human infections are mostly disseminated in the setting of the AIDS epidemic or the use of aggressive immunosuppressive treatments. M. genavense culture is fastidious, requiring supplemented media. Pulmonary involvement rarely occurs as a primary localization. Cases presentation We report here two patients with pneumonia as the predominant manifestation of M. genavense infection: one kidney transplanted patient and one HIV-infected patient. Both patients were initially treated with anti-tuberculous drugs before the identification of M. genavense on sputum or broncho-alveolar lavage fluid culture. A four-drug regimen including clarithromycin and rifabutin was started. Gamma interferon has been helpful in addition to antimycobacterial treatment for one patient. Conclusion Clinicians should be aware that M. genavense could be the etiologic agent of sub-acute pneumonia mimicking tuberculosis in patients with cellular immunodeficiency status.
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