title: [A case of multiple liver abscesses associated with Streptococcus salivarius in a patient with chronic periodontitis].
abstract: Streptococcus salivarius is an oral commensal bacterium that rarely causes disease in humans. Here, we report a case of liver abscess associated with S. salivarius in a 41-year-old woman who presented with continuous abdominal discomfort, fatigue, and fever. She was diagnosed with multiple liver abscesses; she underwent percutaneous transhepatic abscess drainage. Thereafter, S. salivarius was isolated in all bacterial cultures of the drained abscesses, and it was sensitive to penicillins. She made a good recovery after treatment. In the absence of an infective source other than chronic periodontitis, the cause of liver abscesses was attributed to oral S. salivarius. S. salivarius is a normal oral commensal, and oral commensals must be considered if the infective origin of liver abscess cannot be determined.
authors.affiliation: Division of Hepatology, Diabetes, Metabolism and Endocrinology, Department of Internal Medicine, Saga University Hospital.
authors.forename: Saori
authors.initials: S
authors.lastname: Kamachi
authors.forename: Taiga
authors.initials: T
authors.lastname: Otsuka
authors.forename: Chika
authors.initials: C
authors.lastname: Tsuji
authors.forename: Shunya
authors.initials: S
authors.lastname: Nakashita
authors.forename: Yasushi
authors.initials: Y
authors.lastname: Ide
authors.forename: Toshihiko
authors.initials: T
authors.lastname: Mizuta
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D008100:Liver Abscess / Q000382:microbiology*; D010518:Periodontitis / Q000150:complications / Q000382:microbiology*; D013290:Streptococcal Infections / Q000150:complications; D013291:Streptococcus / Q000302:isolation & purification*