Mechanism of formation of the orange-colored sputum in pneumonia caused by Legionella pneumophila.
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.
Department of Medicine and Therapeutics, Control and Prevention of Infectious Diseases (The First Department of Internal Medicine), Faculty of Medicine, University of the Ryukyus, Okinawa. fujita@med.u-ryukyu.ac.jp
Jiro
J
Fujita
Masato
M
Touyama
Kenji
K
Chibana
Michio
M
Koide
Shusaku
S
Haranaga
Futoshi
F
Higa
Masao
M
Tateyama
D003116:Color; D006801:Humans; D016952:Legionella pneumophila / Q000502:physiology*; D007877:Legionnaires' Disease / Q000175:diagnosis; D008297:Male; D008875:Middle Aged; D013183:Sputum / Q000737:chemistry*