title: A Case of Disseminated Infection due to Actinomyces meyeri Involving Lung and Brain.
abstract: Actinomyces meyeri is rarely isolated in cases of actinomycosis. The identification of A. meyeri had historically been difficult and unreliable. With the recent development of 16S ribosomal RNA (16S rRNA) sequencing, Actinomyces species such as A. meyeri can be isolated much more reliably. A. meyeri often causes disseminated disease, which can be secondary to frequent pulmonary infections. A penicillin-based regimen is the mainstay of A. meyeri treatment, with a prolonged course usually required. Here, we report a case of pulmonary actinomycosis with brain abscess caused by A. meyeri that was initially thought to represent lung cancer with brain metastasis.
authors.affiliation: Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
authors.forename: Hyun Jung
authors.initials: HJ
authors.lastname: Park
authors.affiliation: Department of Internal Medicine, Kyung Hee University School of Medicine, Seoul, Korea.
authors.forename: Ki-Ho
authors.initials: KH
authors.lastname: Park
authors.affiliation: Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
authors.forename: Sung-Han
authors.initials: SH
authors.lastname: Kim
authors.affiliation: Department of Laboratory Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
authors.forename: Heungsup
authors.initials: H
authors.lastname: Sung
authors.affiliation: Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
authors.forename: Sang-Ho
authors.initials: SH
authors.lastname: Choi
authors.affiliation: Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
authors.forename: Yang Soo
authors.initials: YS
authors.lastname: Kim
authors.affiliation: Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
authors.forename: Jun Hee
authors.initials: JH
authors.lastname: Woo
authors.affiliation: Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
authors.forename: Sang-Oh
authors.initials: SO
authors.lastname: Lee
keywords: Actinomyces; Brain abscess; RNA; Sequence analysis