Traumatic avulsion of the oculomotor nerve documented by high-resolution magnetic resonance imaging.

Autopsy studies have described definitive traumatic avulsion of the oculomotor nerve from the brainstem; however, detailed characterization of mechanisms and localization of traumatic nerve injury has yet to be definitively described in vivo. We report the case of a 13-year-old girl in whom high-resolution magnetic resonance imaging confirmed irreversible injury to the left oculomotor nerve after trauma.