Review Question - QID 211529

A 32-year-old male truck driver is involved in a motor vehicle collision with rollover. The presenting AP pelvic radiograph is shown in Figure A. He is additionally found to have sustained a closed left tibia shaft fracture, closed right comminuted supracondylar femur fracture, and closed right humeral shaft fracture. The patient is hypotensive on presentation and requires transfusion of 4 units of packed red blood cells during resuscitation. Initial CT with contrast of the chest, abdomen, and pelvis demonstrates extravasation from the left superior gluteal artery (SGA). He is taken for selective embolization. The remainder of his injuries are splinted, and he is admitted to the ICU for continued resuscitation. The next day, the patient remains persistently hypotensive and requires transfusion of an additional 7 units. A repeat pelvic angiogram is most likely to reveal?