title: [A case of pulmonary actinomycosis, who expectorated sulfur granules, caused by Actinomyces odontolyticus and Actinomyces meyeri].
abstract: A 51-year-old man complaining of cough and bloody sputum, was admitted to our hospital because of antibiotic-resistant chronic pneumonia in the right upper lobe. Initially, bronchoscopic examination and sputum culture revealed no evidence of malignancy or any specific infection, either pathologically or microbiologically. However, pathological examination of a solid body expectorated with sputum revealed typical sulfur granules, indicating pulmonary actinomycosis. Two actinomyceses named Actinomyces odontolyticus and Actinomyces meyeri were detected later. Pulmonary infection caused by these types of actinomyceses is rare, and the diagnostic procedure seemed to be unusual.
authors.affiliation: First Department of Internal Medicine, Faculty of Medicine, Kagawa University.
authors.forename: Kentaro
authors.initials: K
authors.lastname: Susaki
authors.forename: Shuji
authors.initials: S
authors.lastname: Bandoh
authors.forename: Jiro
authors.initials: J
authors.lastname: Fujita
authors.forename: Nobuhiro
authors.initials: N
authors.lastname: Kanaji
authors.forename: Tomoya
authors.initials: T
authors.lastname: Ishii
authors.forename: Akihito
authors.initials: A
authors.lastname: Kubo
authors.forename: Toshihiko
authors.initials: T
authors.lastname: Ishida
mesh_terms: D000196:Actinomycosis / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D006469:Hemoptysis / Q000382:microbiology; D006801:Humans; D008171:Lung Diseases / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D008297:Male; D008875:Middle Aged; D014057:Tomography, X-Ray Computed