title: Aneurysm regression after coil embolization of a concurrent aneurysm.
abstract: 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.
authors.affiliation: Section of Endovascular Neurosurgery, Department of Neurological Surgery, Cleveland Clinic Foundation, Cleveland, OH 44195, USA.
authors.forename: Michael M
authors.initials: MM
authors.lastname: Chow
authors.forename: William E
authors.initials: WE
authors.lastname: Thorell
authors.forename: Peter A
authors.initials: PA
authors.lastname: Rasmussen
mesh_terms: D000328:Adult; D002343:Carotid Artery, Internal; D004621:Embolization, Therapeutic / Q000295:instrumentation; D005260:Female; D006801:Humans; D002532:Intracranial Aneurysm / Q000150:complications* / Q000628:therapy*; D012075:Remission, Spontaneous