Figure 1

Computed tomography and angiographic images in cases 1 and 2. Upper left panel shows abdominal CT image from case 1. A giant intramuscular hematoma in the iliopsoas muscle and the active bleeding point (white arrowhead) are shown. Upper right panel shows an angiographic image from case 1. Extravasation was found in the superior gluteal artery area (black arrowheads). Lower left panel shows an abdominal CT image from case 2. A left iliopsoas muscle hematoma is shown. Lower right panel shows an angiographic image from case 2. Multiple extravasations were found in the 3rd lumbar artery (black arrowheads).