title: Soft-tissue abscess involving Actinomyces odontolyticus and two Prevotella species in an intravenous drug abuser.
abstract: Skin and soft-tissue infections in intravenous users comprise a variety of microorganisms and anaerobic bacteria are frequently involved in these suppurative infections. A case of subcutaneous abscess into anterior femoral muscles involving Actinomyces odontolyticus and two Prevotella species (Prevotella buccae and Prevotella melaninogenica) in an intravenous drug abuser is presented. This combination of microorganisms has not previously been described in soft-tissue infections. The patient volunteering that he licked his hypodermic needle prior to cocaine injection supports that the implicating bacteria originated from the oral cavity. Eventually, the patient recovered and at a 6-month follow-up a gradual improvement of his subcutaneous infection was noticed.
authors.affiliation: Department of Clinical Microbiology, Hippokration General Hospital, Thessaloniki 54 642, Greece.
authors.forename: D
authors.initials: D
authors.lastname: Sofianou
authors.forename: E
authors.initials: E
authors.lastname: Avgoustinakis
authors.forename: A
authors.initials: A
authors.lastname: Dilopoulou
authors.forename: S
authors.initials: S
authors.lastname: Pournaras
authors.forename: G
authors.initials: G
authors.lastname: Tsirakidis
authors.forename: A
authors.initials: A
authors.lastname: Tsakris
mesh_terms: D000038:Abscess / Q000382:microbiology* / Q000473:pathology / Q000628:therapy; D000190:Actinomyces / Q000254:growth & development*; D000196:Actinomycosis / Q000382:microbiology* / Q000473:pathology / Q000628:therapy; D000328:Adult; D016866:Bacteroidaceae Infections / Q000382:microbiology* / Q000473:pathology / Q000628:therapy; D006801:Humans; D008297:Male; D001443:Prevotella melaninogenica / Q000254:growth & development*; D018461:Soft Tissue Infections / Q000382:microbiology* / Q000473:pathology / Q000628:therapy; D019966:Substance-Related Disorders / Q000382:microbiology*