Bilateral internuclear ophthalmoplegia following mild head injury

A 7-year-old child presented with bilateral internuclear ophthalmoplegia (I NO) following a trivial head injury. CT was normal. MRI revealed a pontine lesion. Two months after the injury the patient was neurologically normal. INO following head injury is rare. Rarer still is INO following mild head i njury. To date, only four cases of INO had been reported following mild hea d injury; the present case is the fifth and the first in which the lesion w as documented using MRI. The relevant literature is reviewed.