title: Infection of a hip prosthesis by Actinomyces naeslundii.
abstract: We present the case of a 77-year-old woman who developed an Actinomyces naeslundii infection of a hip prosthesis. The isolate grew well aerobically with 5% CO(2). Possible diagnostic problems may arise in the microbiological laboratory because aerobic growth is not sufficiently accounted for in some of the traditional identification schemes and commercial test kits. Therefore, besides presenting an unusual pathogen in this setting, this report focuses on possible diagnostic problems in the microbiological laboratory.
authors.affiliation: Diagnostica Medical Laboratory, University of Zurich, Zurich, Switzerland. jwust@unilabs.ch
authors.forename: J
authors.initials: J
authors.lastname: Wüst
authors.forename: U
authors.initials: U
authors.lastname: Steiger
authors.forename: H
authors.initials: H
authors.lastname: Vuong
authors.forename: R
authors.initials: R
authors.lastname: Zbinden
mesh_terms: D000190:Actinomyces / Q000302:isolation & purification*; D000196:Actinomycosis / Q000175:diagnosis / Q000382:microbiology*; D000368:Aged; D005260:Female; D006622:Hip Prosthesis / Q000009:adverse effects*; D006801:Humans; D016459:Prosthesis-Related Infections / Q000175:diagnosis / Q000382:microbiology*