Abstract
A 32-year-old woman presented with vertical diplopia after a blunt head injury due to a vehicle crash. On examination 2 weeks after the trauma, she had a pupil-involving right third-nerve palsy. The absence of intorsion when looking downward starting from an abducted eye-in-orbit position suggested
Highlights
Mechanical compression and/or traction of cranial nerves may develop as a consequence of head trauma
Despite the lack of data in the clinical literature, contrast enhancement of injured nerves after traction or compression is well-known from animal experiments.[4]
In a recent analysis by Coello et al,1 11.3% of patients with posttraumatic cranial nerve injuries had an oculomotor nerve palsy; 42.8% of these patients had at least 1 additional cranial nerve involvement
Summary
Mechanical compression and/or traction of cranial nerves may develop as a consequence of head trauma.
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