Case 3.A, CT angiography revealing bilateral asymptomatic middle cerebral artery (MCA) bifurcation aneurysms and an additional aneurysm at the left distal superior cerebellar artery.B and C, In a first procedure, the left MCA and the cerebellar superior art... Case 3.A, CT angiography revealing bilateral asymptomatic middle cerebral artery (MCA) bifurcation aneurysms and an additional aneurysm at the left distal superior cerebellar artery.B and C, In a first procedure, the left MCA and the cerebellar superior artery aneurysms were completely embolized.D–F, Eight weeks later, the right MCA bifurcation aneurysm was completely occluded with coils. A. Doerfler et al. AJNR Am J Neuroradiol 2006;27:513-520 ©2006 by American Society of Neuroradiology