Abstract
BACKGROUND: Liver abscess may be a complication after pancreatectomy. Eikenella corrodens is a rare pathogen associated with sepsis and endocarditis among other infections. METHODS: We report on a patient who developed a polymicrobial liver abscess with three unusual pathogens three months following pylorus preserving pancreatoduodenectomy and adjuvant chemotherapy for pancreatic adenocarcinoma. A review of the literature with regard to liver abscesses caused by the rare pathogens was performed. RESULTS: The eight cm pyogenic liver abscess, which grew Eikenella corrodens, Prevotella melaninogenica, and Lactobacillus spp., was successfully treated with percutaneous drainage and antibiotic therapy using piperacillin/tazobactam followed by ertapenem. Literature review for previously reported cases of liver abscesses due to these organisms revealed that most were percutaneously drained and had good outcome. Eikenella corrodens (n = 10) and Prevotella (n = 8) liver abscesses were typically polymicrobial, whereas Lactobacillus (n = 6) liver abscesses were more commonly monomicrobial. CONCLUSIONS: Uncommon organisms such as Eikenella corrodens causing uncommon infections such as liver abscesses must be considered after pancreatic resection with adjuvant chemotherapy. Following species diagnosis, favorable outcome can be achieved.
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