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Technique: After informed written consent was obtained, the patient was prepped and draped in the usual sterile manner. Access was obtained using CT fluoroscopic guidance. An 8 French catheter was advanced into the distended bladder. Subsequently, as the patient drain uterine the bladder contracted. The pigtail catheter utilized was unable 2 remain within the lumen of a contracting bladder. The referring urologist was notified. The patient left the department in the same condition. Once the bladder had retracted a window through the lower pelvis was not identified for replacement. The bladder capacity was an inadequate target for a replaced catheter. The patient tolerated the procedure well. The patient left the department in the same condition. Unsuccessful attempt at placing a super pubic catheter with an 8 French pigtail drain. The catheter was placed within the lumen and the bladder was drained. As the bladder retracted the pigtail catheter sideholes were eventually excluded from the smaller capacity bladder. The referring urologist was notified.