3D volume rendering of entrapped malecot nephrostomy cathete
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A Malecot nephrostomy catheter is commonly placed in the renal pelvis to allow for percutaneous drainage. The inability to remove a Malecot catheter is a rarely reported complication. An 87-year-old man undergoing radical cystectomy and bilateral nephrostomy visited our hospital 19 days postoperatively because of a lack of urine flow from the left 14-Fr Malecot nephrostomy catheter. The catheter was apparently firmly anchored to the kidney, and an attempt to reposition the catheter failed. Three-dimensional computed tomography volume rendering indicated a deformity of the left catheter compared with the right, implying that something was lodged in the Malecot flanges. Surgical removal of the catheter 2 days later revealed granulation tissue overbridging the Malecot wings. Tissue was cut the and the catheter was successfully exchanged...

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