Fig.1. Left-side meningioma of lateral segments of the sphenoid bone wings: Preoperative embolization.

A, B - CT of the brain with enhancing: Big hypervascularized meningioma of lateral segments of the sphenoid bone wings (density increase by 27 HU).
C - selective angiogram of the left ICA: A tumor vascular network from "pial" sources of blood supply, i.e. branches of the middle cerebral artery.
D - selective angiogram of the left ECA: A tumor vascular network in a region of the middle meningeal artery.
E - control angiogram of the left ECA: There is no tumor vascular network.