Missed Diagnosis of Aspergillus Niger Peritonitis in a Peritoneal Dialysis Patient with Standard Culture: Might Enriched Blood Culture Materials have an Advantage?

Peritonitisis a major complication of peritoneal dialysis(PD).Although bacteria are the mostresponsible pathogens, fungi can also be the cause of this condition. Candida species (spp.) are common agents in fungal peritonitis with a rate of 70% while Aspergillus spp. is rare. Aspergillus spp. can lead to severe life threatening peritonitis in PD patients. Early diagnosis is essential for a good outcome but it may be difficult to detect the pathogen. Our observation in this case supports the hypothesis that the enriched culture materials designed for detecting blood pathogens can provide an advantage for determining the cause of peritonitis in peritoneal fluid. Clinicians should remember this clue when managing peritonitis, especially in patients who are refractory to empiric antibiotic therapy.