Liver and brain abscess caused by Aggregatibacter paraphrophilus in association with a large patent foramen ovale: a case report.
BACKGROUND
Aggregatibacter paraphrophilus (former name Haemophilus paraphrophilus) is a normal commensal of the oral flora. It is a rare cause of hepatobiliary or intracerebral abscesses.


METHODS
We 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.


CONCLUSIONS
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.
Ariyaratnam
Shaumya
S
Department of Medicine, Hinchingbrooke Health Care NHS Trust, Hinchingbrooke Hospital, Hinchingbrooke Park, Huntingdon, PE29 6NT, UK. andreas.karas@papworth.nhs.uk.
Gajendragadkar
Parag R
PR
Dickinson
Richard J
RJ
Roberts
Phil
P
Harris
Kathryn
K
Carmichael
Andrew
A
Karas
Johannis A
JA