Malfunction of Tenckhoff catheter due to a rare kink.

A case of sudden malfunction of Tenckhoff Catheter in a patient undergoing continuous ambulatory peritoneal dialysis (CAPD) treatment is reported. Upon laparotomy, the catheter was found to form a knob inside the peritoneal cavity. The report emphasized on the simple but effective diagnostic value of abdominal X-ray and the importance of care of the bowel motion in a patient on CAPD.