Previous studies have shown that extracranial-intracranial (EC-IC) bypass surgery has no preventive effect on subsequent ipsilateral ischemic stroke in patients with symptomatic atherosclerotic internal carotid occlusion and hemodynamic cerebral ischemia. A few studies have assessed whether an urgent EC-IC bypass surgery is an

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Fig. 1 T 1 -weighted magnetic resonance images with contrast medium revealing a well-enhanced mass in the left tentorium, cavernous sinus, and suprasellar region. AbstractA 39-year-old woman presented with left visual disturbance and diplopia. Magnetic resonance imaging revealed a well-enhanced tumor in the left tentorium, cavernous sinus, and suprasellar region. Angiography demonstrated an abnormal origin of the ophthalmic artery from the anterior cerebral artery. The tumor was partially removed by left frontotemporal craniotomy with orbitozygomatic osteotomy. Intraoperatively, the anomalous origin of the ophthalmic artery was confirmed. This anatomical variation is extremely rare.

The radial artery and saphenous vein have been used as a useful free graft for neurosurgical revascularization surgery. Potential disadvantages of the radial artery compared with the saphenous vein include relative shortness, spasm, and functional occlusion. To compensate for the short length of the radial artery graft, the radial artery and the superior thyroid or occipital arteries were connected end-to-end. This method was applied in 3 cases of unclippable aneurysms, achieving adequate revascularizations. There were no complications related to this procedure. Radial artery graft bypass using the superior thyroid or occipital artery is a simple, safe, and useful method for cerebral revascularization.

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