Journal Article

Persistently Positive Culture Results in a Patient with Community-Acquired Pneumonia Due to <i>Legionella pneumophila</i>

James S. Tan, Thomas M. File, Joseph R. DiPersio, Linda P. DiPersio, Robert Hamor, Louis D. Saravolatz and Janet E. Stout

in Clinical Infectious Diseases

Published on behalf of Infectious Diseases Society of America

Volume 32, issue 11, pages 1562-1566
Published in print June 2001 | ISSN: 1058-4838
Published online June 2001 | e-ISSN: 1537-6591 | DOI: http://dx.doi.org/10.1086/320526
Persistently Positive Culture Results in a Patient with Community-Acquired Pneumonia Due to Legionella pneumophila

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We describe a patient with community-acquired pneumonia due to Legionella pneumophila serogroup 6. This patient was found to have bronchoalveolar carcinoma of the lung by means of cytologic testing in 1 of 2 bronchoalveolar lavage samples, but no lesions were visible on bronchoscopy. Despite intravenous administration of azithromycin to the patient, repeat culture and polymerase chain reaction showed persistence of Legionella; the isolates remained susceptible to azithromycin. The patient did not respond to 14 doses of daily intravenously administered azithromycin. The poor outcome may have been partially due to the suspected underlying lung malignancy, as shown by cytologic examination, and by a delay in seeking medical attention.

Journal Article.  3046 words.  Illustrated.

Subjects: Infectious Diseases ; Immunology ; Public Health and Epidemiology ; Microbiology

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