Fig.2. Meningioma of the left frontal lobe: Preoperative embolization.

A - right-side angiogram of the ECA: A tumor vascular network in a region of the middle meningeal artery.
B - superselective angiogram of the right middle meningeal artery.
C - control angiogram of the right ECA: There is no tumor vascular network.
D - superselective angiogram of the left middle meningeal artery: 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.
F - craniogram: Radiopaque deposits of an embolizing material (Hystoacryl+Lipiodol) in both middle meningeal arteries and tumor vessels.
G, H - MRI of the brain with enhancing after embolization: Vessel-free areas (dark color) in a tumor central part (intraoperative data: necrosis zones).