Internal Medicine
Online ISSN : 1349-7235
Print ISSN : 0918-2918
ISSN-L : 0918-2918
CASE REPORTS
Mechanism of Formation of the Orange-Colored Sputum in Pneumonia Caused by Legionella pneumophila
Jiro FujitaMasato TouyamaKenji ChibanaMichio KoideShusaku HaranagaFutoshi HigaMasao Tateyama
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JOURNALS OPEN ACCESS

2007 Volume 46 Issue 23 Pages 1931-1934

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Abstract

It has been said that the color of sputum from patients with Legionella pneumophila pneumonia is orange. However, why the color is orange has not been clarified. First, orange-colored sputum obtained from a patient with L. pneumophila pneumonia is presented. Then, the formation of an orange-colored pigment in a culture medium (without charcoal) after the growth of L. pneumophila is demonstrated.

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© 2007 by The Japanese Society of Internal Medicine
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