The differentiation of extrinsic from intrinsic intracranial tumors with particular reference to posterior fossa tumors.
D000328:Adult; D001488:Basilar Artery / Q000000981:diagnostic imaging; D001932:Brain Neoplasms / Q000000981:diagnostic imaging*; D002528:Cerebellar Neoplasms / Q000000981:diagnostic imaging; D002533:Cerebral Angiography; D014695:Cerebral Ventriculography; D002817:Chordoma / Q000000981:diagnostic imaging; D003388:Cranial Fossa, Posterior; D005260:Female; D006801:Humans; D002532:Intracranial Aneurysm / Q000000981:diagnostic imaging; D009442:Neurilemmoma / Q000000981:diagnostic imaging