title: [A case of pulmonary nocardiosis with simultaneous identification of N. farcinica and N. cyriacigeorgica].
abstract: A 51-year-old man with bronchiectasis and persistent lower respiratory tract infection was referred to our hospital for further evaluation of a mass shadow in the upper lung field on his chest X-ray film in February 2006. Two Nocardia spp (N. cyriacigeorgica and N. farcinica) were simultaneously identified from sputum collected through bronchoscopy by culture. We diagnosed pulmonary nocardiosis and commenced minocycline treatment. The possibility of lung cancer was excluded by sputum cytology and CT guided lung biopsy. Remarkable improvement of the mass lesion was recognized after treatment for 6 months. To the best of our knowledge, double infection of two species of Nocardia is very rare.
authors.affiliation: Department of Infectious Diseases, Nagasaki University Hospital of Medicine and Dentistry.
authors.forename: Takeshi
authors.initials: T
authors.lastname: Tanaka
authors.forename: Reiki
authors.initials: R
authors.lastname: Kuroki
authors.forename: Masayuki
authors.initials: M
authors.lastname: Ishida
authors.forename: Shoko
authors.initials: S
authors.lastname: Honda
authors.forename: Tsutomu
authors.initials: T
authors.lastname: Tagawa
authors.forename: Takeshi
authors.initials: T
authors.lastname: Nagayasu
authors.forename: Tomayoshi
authors.initials: T
authors.lastname: Hayashi
authors.forename: Yoshiko
authors.initials: Y
authors.lastname: Tsuchihashi
authors.forename: Konosuke
authors.initials: K
authors.lastname: Morimoto
authors.forename: Koya
authors.initials: K
authors.lastname: Ariyoshi
mesh_terms: D006801:Humans; D008171:Lung Diseases / Q000382:microbiology*; D008297:Male; D008875:Middle Aged; D009615:Nocardia / Q000302:isolation & purification*; D009617:Nocardia Infections / Q000382:microbiology*; D013183:Sputum / Q000382:microbiology