PMC3141853_01
Magnetic resonance image showing a linear wound (indicated by white arrows) that traverses the pons and reaches the fourth cerebral ventricle and cerebellar vermis.
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T2-weighted magnetic resonance imaging (MRI) on December 27, 2006 showed a high intensity signal that passed through the pons obliquely from the right to left side and reached the fourth cerebral ventricle and cerebellar vermis (white arrows in Figure 1).
External photograph of the eyes, and Hess chart, at the initial examination. (A) Esotropia can be seen at the primary eye position. Abduction of the left eye is severely impaired, and adduction is mildly limited in both eyes (indicated by arrows). (B) Hess chart shows esotropia and limitation of abduction of the left eye.
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On our initial examination, on January 4, 2007, he was found to be esotropic with severe limitation of abduction of the left eye and mild limitation of adductions of both eyes (indicated by arrows, Figure 2A). Examination with a Hess chart demonstrated that abduction of the left eye was severely limited (Figure 2B).
External photograph of the eyes, and Hess chart, three months after the injury. (A) Eye position and eye movements had completely recovered. (B) Hess chart shows recovery of the eye position and movement.
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Three months after the injury, the eye position and eye movements had completely recovered (Figure 3A), which was confirmed by the Hess chart tests and single binocular vision tests (Figure 3B).