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Tomographic findings in traumatic globe evulsion caused by blunt head trauma

¹ Magnetic Resonance Unit, ² Department of Radiology, ³ Ophthalmology Unit, Medica Sur Hospital and Clinical Foundation, Mexico City, Mexico

View larger version (110K): [in this window] [in a new window]   Figure 1. Unenhanced CT.(a,c) Sagittal and axial plane multiplanar reconstructions showing the right globe hanging outside the orbit. There was nerve sheath disruption of the intraorbital portion of the optic nerve, with detachment of the optic nerve and external orbital muscles at their insertion points in the globe. (b,d) Sagittal and axial planes of the left globe show a normal appearance.

View larger version (84K): [in this window] [in a new window]   Figure 2. Unenhanced CT.(a) Axial plane at the mid-orbit depicting the evulsed right globe. No signs of intraconal haematoma are noted and a small amount of blood in the ethmoidal sinuses is observed. (b) Axial plane, a slightly superior image, showing an extensive subarachnoid haemorrhage in the suprachiasmatic cisterns with fluid–fluid levels in the lateral ventricles.

View larger version (37K): [in this window] [in a new window]   Figure 3. Proposed mechanism of injury caused by an elongated object entering the orbit medial to the globe(axial plane), modified from Morris et al [6].