Peritoneal dialysis(PD)-associated peritonitis is usually caused by contamination of the PD system or infection of exit site.Peritonitis may sometimes be present with gastrointestinal diseases,such as in-testinal perforation,ischemic bowel disease or cholecystitis.PD-associated peritonitis due to obstructive pyo-nephrosis is rarely seen.Here we report the first case of PD-associated peritonitis due to obstructive pyone-phrosis in a 72-year-old PD patient in China.He was then subjected to a left-sided percutaneous nephrostomy and nephrectomy without removal of the peritoneal dialysis catheter.No peritonitis relapsed in the next 8 months after the operation.From this case we can draw the experience that PD-associated peritonitis may de-rive from a focal infection,which is of diagnostic and therapeutic importance.
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