Neurologia medico-chirurgica
Online ISSN : 1349-8029
Print ISSN : 0470-8105
ISSN-L : 0470-8105
Case Reports
Cerebral Aneurysm Regrowth and Coil Unraveling After Incomplete Guglielmi Detachable Coil Embolization: Serial Angiographical and Histological Findings
—Case Report—
Kentaro MORIYasuaki NAKAONaoaki HORINAKARyo WADAAkira HIRANOMinoru MAEDA
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JOURNAL OPEN ACCESS

2003 Volume 43 Issue 6 Pages 293-297

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Abstract

A 69-year-old woman suffered subarachnoid hemorrhage due to rupture of an aneurysm at the tip of the basilar artery. The aneurysm was treated by endovascular treatment using Guglielmi detachable coils but the aneurysm dome could not be completely packed. Serial angiography at 10 and 18 months after embolization showed progressive regrowth of the aneurysm with loosening and unraveling of the packed coils. The patient died accidentally after head injury and autopsy was performed. Examination of the aneurysm showed further regrowth and “relative coil compaction” of the coil mass. Histological examination of the resected aneurysm showed no endothelialized membrane in the orifice and only minimal organized thrombus in the body of the aneurysm.

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© 2003 by The Japan Neurosurgical Society

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