Brown Séquard syndrome due to cervical pen assault.

Brown Séquard syndrome is an uncommon incomplete spinal cord injury with ipsilateral motor and proprioception loss and contralateral pain and temperature loss. A 14-year-old student with classic Brown Séquard syndrome after pen assault injury by his classmate in posterior neck area presented here; with medical and supportive care, the patient was discharged with good outcome. Brown Séquard syndrome is mostly due to penetrating trauma. Several types of penetrating objects have been reported but this appears to be the first report of a pen or pencil injury.