Arteriovenous separation of the prepontine vessels as a sign of intrapontine tumour.
D001488:Basilar Artery / Q000000981:diagnostic imaging; D001932:Brain Neoplasms / Q000000981:diagnostic imaging*; D002533:Cerebral Angiography; D006801:Humans; D008579:Meningioma / Q000000981:diagnostic imaging*; D008636:Mesencephalon; D009362:Neoplasm Metastasis; D011149:Pons