Obstructed Tenckhoff peritoneal dialysis catheter
Chronic renal failure. Catheter inserted for peritoneal dialysis 1 month ago. Now "blocked".
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Catheter has a horizontal course through the anterior abdominal wall and then turns abruptly vertically to pierce the rectus muscles. It is at this point that the catheter is kinked. Intra-peritoneal portion of the catheter is in satisfactory position.
CT is very useful (especially volume rendered images) to assess the position, course and integrity of catheters such as a Tenckhoff.