Findings: No significant fibromuscular disease, stenosis or dissection is seen in either carotid artery or the left vertebral artery. The anterior cranial fossa skull base tumour is markedly hypervascular, with a parenchymal staining pattern typical of a meningioma. The supply comes almost exclusively from ethmoidal meningeal branches from each ophthalmic artery. A small pial supply from the frontopolar branch is suspected. There was no significant supply from either middle meningeal artery, or other external carotid artery feeders. On this basis no embolisation was performed. Groin sheath removed and manual compression applied.
Conclusion: Meningioma supply predominantly from ophthalmic artery ethmoidal branches.