Hepatic Abscess Caused by Aggregatibacter kilianii in an Immunocompetent Active Duty Male, Case Report

Bacterial translocation from normal oral flora, such as Aggregatibacter spp., can rarely lead to endocarditis, bloodstream infections, and abscesses. We present a case of an immunocompetent active duty service member with a hepatic abscess from a presumed routine dental hygiene cleaning with Aggregatibacter kilianii bacteremia. Aggregatibacter kilianii is a relatively novel species, closely related to the well-reported Aggregatibacter aphrophilus but genetically distinct. This appears to be one of the first described cases of a hepatic abscess caused by this species.