Computerized tomographic and magnetic resonance images of the patient's brain. A) This computed tomography (CT) scan shows incarcerated orbital bone fragment (arrow) and brain contusion. B) This three-dimensional CT scan shows a window defect caused by a fracture (arrow) of the superior orbital wall. C) This magnetic resonance image (MRI) shows the brain edema in greater detail (arrowhead). D) This MRI sagittal section shows where the umbrella tip had penetrated through the periorbital puncture (arrowhead).