Abstract
IntroductionAggregatibacter paraphrophilus (former name Haemophilus paraphrophilus) is a normal commensal of the oral flora. It is a rare cause of hepatobiliary or intracerebral abscesses.Case presentationWe report a case of a 53-year-old Caucasian man with a liver abscess and subsequent brain abscesses caused by Aggregatibacter paraphrophilus. The probable source of the infection was the oral flora of our patient following ingestion of a dental filling. The presence of a large patent foramen ovale was a predisposing factor for multifocal abscesses.ConclusionIn this case report, we describe an unusual case of a patient with both liver and brain abscesses caused by an oral commensal Aggregatibacter paraphrophilus that can occasionally show significant pathogenic potential.
Highlights
Aggregatibacter paraphrophilus is a normal commensal of the oral flora
In this case report, we describe an unusual case of a patient with both liver and brain abscesses caused by an oral commensal Aggregatibacter paraphrophilus that can occasionally show significant pathogenic potential
Our patient was put on anti-coagulant and anticonvulsant therapy and a cranial Magnetic resonance imaging (MRI) on day 137 has shown further improvement of the cerebral abscesses. In this case, we highlight the potential for Aggregatibacter paraphrophilus to cause widespread systemic infections especially following dental treatment
Summary
Aggregatibacter paraphrophilus (former name Haemophilus paraphrophilus) is a normal commensal of the oral flora. We describe a rare case of a patient with both liver and brain abscesses caused by Aggregatibacter paraphrophilus, incidentally found to have a patent foramen ovale. A CT scan of the abdomen and pelvis revealed a single enhancing low attenuation 4.5 cm mass in the right lobe of the liver which showed some contrast enhancement [figure 1].
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