Fig. 23From: Computed tomography in traumatic orbital emergencies: a pictorial essay—imaging findings, tips, and report flowchartCoronal reconstruction showing the presence of retrobulbar emphysema due to a fracture of the right lamina papyracea, visible as air within the upper right orbit, that mimics the appearance of an eyebrow (asterisk). This is an important indirect sign of orbital bone fracture [42]Back to article page