title: [Pulmonary actinomycosis that was difficult to make an accurate diagnosis].
abstract: A 35-year-old man was referred to our hospital, because of recurrent pneumonia. His chest X-ray film and computed tomography showed mass-like consolidation with a cavity in the right upper lobe. He underwent a bronchoscopic examination, but no diagnosis was established. Therefore a surgical biopsy was performed, but the pathological findings revealed that it was only an inflammatory change without any malignant component. For a while, antibiotic and the steroid treatment was continued resulting in the aggravation of clinical findings. Finally, an upper lobe excision was performed for the complete excision of the lesion. As a result of pathology, pulmonary actinomycosis was diagnosed.
authors.affiliation: Department of Surgery, Asahikawa Medical Center, Asahikawa, Japan.
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Aoki
authors.forename: Atsushi
authors.initials: A
authors.lastname: Nagase
authors.forename: Satoshi
authors.initials: S
authors.lastname: Honmou
authors.forename: Kazunori
authors.initials: K
authors.lastname: Watanabe
authors.forename: Atsushi
authors.initials: A
authors.lastname: Maeda
mesh_terms: D000196:Actinomycosis / Q000175:diagnosis* / Q000601:surgery; D000328:Adult; D001706:Biopsy; D006801:Humans; D008171:Lung Diseases / Q000175:diagnosis* / Q000601:surgery; D008297:Male; D011013:Pneumonectomy; D014057:Tomography, X-Ray Computed