A, Axial source image from a contrast-enhanced MRA unambiguously demonstrates a tiny (<2-mm) residual superior hypophyseal-region aneurysm (arrow). A, Axial source image from a contrast-enhanced MRA unambiguously demonstrates a tiny (<2-mm) residual superior hypophyseal-region aneurysm (arrow). B, Correlative left internal carotid conventional angiogram shows that this tiny pocket of residual filling (arrow) is surrounded by strands of coil. R.C. Wallace et al. AJNR Am J Neuroradiol 2007;28:1001-1008 ©2007 by American Society of Neuroradiology