title: Actinomyces meyeri Empyema: A Case Report and Review of the Literature.
abstract: Actinomyces meyeri is an uncommon cause of human actinomycosis. Here, we report a rare case of empyema caused by A. meyeri. A 49-year-old male presented with a history of 10 days of dyspnea and chest pain. A large amount of loculated pleural effusion was present on the right side and multiple lung nodules were documented on radiological studies. A chest tube was inserted and purulent pleural fluid was drained. A. meyeri was isolated in anaerobic cultures of the pleural fluid. The infection was alleviated in response to treatment with intravenous penicillin G (20 million IU daily) and oral amoxicillin (500 mg every 8 hours) for 4 months, demonstrating that short-term antibiotic treatment was effective.
authors.affiliation: Department of Internal Medicine, Inje University Ilsan Paik Hospital, Goyang 411-706, Republic of Korea.
authors.forename: Hae Won
authors.initials: HW
authors.lastname: Jung
authors.affiliation: Department of Laboratory Medicine, Inje University Ilsan Paik Hospital, Goyang 411-706, Republic of Korea.
authors.forename: Chong Rae
authors.initials: CR
authors.lastname: Cho
authors.affiliation: Department of Thoracic Surgery, Inje University Ilsan Paik Hospital, Goyang 411-706, Republic of Korea.
authors.forename: Ji Yoon
authors.initials: JY
authors.lastname: Ryoo
authors.affiliation: Department of Internal Medicine, Inje University Ilsan Paik Hospital, Goyang 411-706, Republic of Korea.
authors.forename: Hyun Kyo
authors.initials: HK
authors.lastname: Lee
authors.affiliation: Department of Internal Medicine, Inje University Ilsan Paik Hospital, Goyang 411-706, Republic of Korea.
authors.forename: So Young
authors.initials: SY
authors.lastname: Ha
authors.affiliation: Department of Internal Medicine, Inje University Ilsan Paik Hospital, Goyang 411-706, Republic of Korea.
authors.forename: Ji Hoon
authors.initials: JH
authors.lastname: Choi
authors.affiliation: Department of Internal Medicine, Inje University Ilsan Paik Hospital, Goyang 411-706, Republic of Korea.
authors.forename: Yee Gyung
authors.initials: YG
authors.lastname: Kwak