Extracorporeal urinary bypass for malignant ureteral obstruction.

Extracorporeal urinary bypass was attempted in a patient with malignant ureteral obstruction. A nephrostomy was drained into the bladder by connecting the tube to a cystostomy catheter. This method made the patient free from a collecting bag without any significant complications. This method may improve the quality of life of patients with malignant ureteral obstruction, when their bladder is intact.