 These lesions typically damage the cranial nerves leading to both motor and sensory deficits.The cranial nerves that are impaired include the following; Cranial Nerve (CN) V (the trigeminal nerve), CN VII (the facial nerve), CN IX (the glossopharyngeal nerve), CN X (the vagus nerve), and CN XII (the hypoglossal nerve).Cerebral malformation, namely unilateral schizencephaly in association with contralateral polymicrogyria symmetrically in the perisylvian area is another known charactheristic of FCMS.