Agrobacterium radiobacter peritonitis in two patients maintained on chronic peritoneal dialysis.

We report two patients with end-stage renal disease maintained on chronic peritoneal dialysis who developed peritonitis in which the infecting organism was Agrobacterium radiobacter, normally a rare pathogen in humans. Both patients initially responded to antibiotics, but later relapsed and required catheter removal. Neither had been exposed to soil or plant material. A radiobacter is yet another of a growing list of unusual organisms that infect the peritoneal cavity of peritoneal dialysis patients.