Computed tomography and angiographic images in cases 3 and 4. Upper left panel shows an abdominal CT image from case 3. A giant intramuscular hematoma in the right iliopsoas muscle is shown. Upper right panel shows an angiographic image from case 3. Extravasation was found in the 4th lumbar artery (black arrowheads). Lower panels show abdominal CT images from case 4 (left: axial view, right: coronal view). A giant retroperitoneal hematoma and the active bleeding point (white arrowhead) are shown.