TY - JOUR T1 - Aneurysm Regression after Coil Embolization of a Concurrent Aneurysm JF - American Journal of Neuroradiology JO - Am. J. Neuroradiol. SP - 917 LP - 921 VL - 26 IS - 4 AU - Michael M. Chow AU - William E. Thorell AU - Peter A. Rasmussen Y1 - 2005/04/01 UR - http://www.ajnr.org/content/26/4/917.abstract N2 - Summary: A 43-year-old woman with two incidental paraclinoid internal carotid artery aneurysms underwent coil embolization of the larger superior hypophyseal aneurysm and 10 weeks later underwent follow-up angiography that showed regression of the smaller, more distal paraclinoid aneurysm. We demonstrate that, although it is a rare occurrence, aneurysms can involute. We discuss potential mechanisms of this phenomenon and review the literature on aneurysm regression. ER -