uihlein and rucker have listed them in descending order of frequency : pituitary adenoma , tumors of the optic nerve and chiasm , supraclinoid aneurysm , parasellar lesion , thrombosis of the carotid artery , hydrocephalus of the third ventricle , chiasmal arachnoiditis , fracture of the anterior cranial fossa , basofrontal tumor of the skull , and pseudotumor cerebri .
C0032000
pituitary adenoma
C0037303
cranial