Intraperitoneal pseudocyst formation as a complication of continuous ambulatory peritoneal dialysis

A patient with an intraperitoneal pseudocyst occurring as a complication of continuous ambulatory peritoneal dialysis (CAPD) for chronic renal failure is presented. The diagnosis was made pre-operatively by ultrasound. This has not been previously reported. A 59-year-old man, with chronic renal failure maintained on CAPD for 1 year, presented with a painful tender mass in the left hypochondrium, which had increased rapidly in size over the previous 2 months. There was an associated history of weight loss, poor appetite and some impairment of ultrafiltration. At no stage did he complain of any bowel symptoms.