 Symptoms result from the functional loss of several anatomical structures of the pons, including the sixth and seventh cranial nerves and fibers of the corticospinal tract.Paralysis of the abducens (CN VI) leads to diplopia, internal strabismus (i.e., esotropia), and loss of power to rotate the affected eye outward), and disruption of the facial nerves (CN VII) leads to symptoms including flaccid paralysis of the muscles of facial expression and loss of the corneal reflex.Disruption of the corticospinal tract leads to contralateral hemiplegia of the extremities.