title: Pulmonary artery pseudoaneurysm caused by Streptococcus constellatus.
abstract: We report a rare case of mycotic pulmonary artery pseudoaneurysm (PAP) secondary to a lung abscess due to Streptococcus constellatus. PAP was confirmed by the pathological findings of the pseudoaneurysm, the presence of bacteria, and the microbiological analysis. PAP is uncommon, but it is important to recognize this condition because PAP can lead to fatal hemoptysis.
authors.affiliation: Department of Laboratory Medicine, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1, Sakamoto, Nagasaki 852-8501, Japan.
authors.forename: Yoshitomo
authors.initials: Y
authors.lastname: Morinaga
authors.forename: Katsunori
authors.initials: K
authors.lastname: Yanagihara
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Gyotoku
authors.forename: Kazuhiro
authors.initials: K
authors.lastname: Oshima
authors.forename: Koichi
authors.initials: K
authors.lastname: Izumikawa
authors.forename: Naoya
authors.initials: N
authors.lastname: Yamasaki
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Kakeya
authors.forename: Tomayoshi
authors.initials: T
authors.lastname: Hayashi
authors.forename: Junya
authors.initials: J
authors.lastname: Fukuoka
authors.forename: Takeshi
authors.initials: T
authors.lastname: Nagayasu
authors.forename: Shigeru
authors.initials: S
authors.lastname: Kohno
mesh_terms: D017541:Aneurysm, False / Q000175:diagnosis / Q000209:etiology* / Q000601:surgery; D006801:Humans; D008168:Lung / Q000473:pathology; D008169:Lung Abscess / Q000150:complications / Q000175:diagnosis / Q000382:microbiology / Q000628:therapy; D008297:Male; D008875:Middle Aged; D011651:Pulmonary Artery / Q000382:microbiology* / Q000473:pathology*; D013290:Streptococcal Infections / Q000150:complications* / Q000175:diagnosis / Q000628:therapy; D034365:Streptococcus constellatus; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome
keywords: Hemoptysis; Pulmonary artery pseudoaneurysm; Streptococcus constellatus