Persistent headache, awaking the patient from sleep. Associated double vision, nausea and vomiting. The post contrast images are mildly limited by patient motion.BRAIN:There is no evidence of intracranial hemorrhage, mass, or acute infarct. The brain parenchyma and pituitary gland appear unremarkable. There is no abnormal intracranial enhancement. The ventricles and basal cisterns are normal in size and configuration. There is no midline shift or herniation. The major cerebral flow voids are intact. The orbits, skull, paranasal sinuses, and scalp soft tissues are grossly unremarkable.Prominent lymph nodes in the included upper neck are nonspecific in this age group. There is trace mucosal thickening in the ethmoid sinuses, which is also nonspecific.BRAINSTEM/CRANIAL NERVES:There is no brainstem or root entry zone lesion. There is no abnormal contrast enhancement in the brainstem or along the cranial nerve roots. There is no skull base destructive lesion. The cavernous sinuses are symmetric. Carotid arterial flow voids are preserved.
Normal examination. Specifically, there is no brainstem or cranial nerve abnormality.