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Research ArticleINTERVENTIONAL

Long-term Histopathologic Findings in Two Cerebral Aneurysms Embolized with Guglielmi Detachable Coils

Enrique Castro, Fernando Fortea, Francisco Villoria, Cesar Lacruz, Balbina Ferreras and Rafael Carrillo
American Journal of Neuroradiology April 1999, 20 (4) 549-552;
Enrique Castro
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Fernando Fortea
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Francisco Villoria
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Cesar Lacruz
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Balbina Ferreras
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Rafael Carrillo
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    fig 1.

    Left ICA angiogram shows MCA aneurysm before (A) and after (B) embolization with GDC. Right ICA angiogram shows carotid ophthlamic aneurysm before (C) and after (D) embolization with GDC

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    fig 2.

    Left ICA angiogram done 1year after GDC treatment of left MCA. Aneurysm remains completely occluded (A). Right ICA angiogram done 1 year after GDC treatment of right carotid ophthalmic aneurysm (B). There is some coil compaction and a small-neck remnant

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    fig 3.

    Pathologic findings of MCA aneurysm fundus. The cast of the coils, removed for cutting purposes, is completely surrounded by richly vascular fibrous tissue more cellular at the periphery of the fundus (star) and around the platinum coils (Hematoxilin and eosin stain; magnification ×200) (A). Many multinucleated foreign body giant cells are stretched along the coil casts, and some were released in the lumen of the coil casts (arrow), probably during coil removal for cutting purposes (Hematoxilin and eosin stain; magnification ×400) (B).

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    fig 4.

    Histologic study of the aneurysm neck.

    A, Capillary growth into the aneurysm neck (1) proceeded from the lumen of the ICA (P) via the neck. A thick and dense layer of collagen tissue aligned parallel to the long axis of the parent vessel, covering ostium (C) (Trichrome stain; magnification ×200).

    B, Transition zone between the endothelial cell lining of neovessels and endothelial cells line the surface of the collagen tissue covering the neck. The neointima is organized in two layers. The most superficial layer comprises endothelium continuous with neovessels proceding from the lumen of the parent vessel (arrow). The deepest layer of neointima consited of dense vascular and collagenous fibrous tissue (C) (Hematoxilin and eosin stain; magnification ×400).

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American Journal of Neuroradiology
Vol. 20, Issue 4
1 Apr 1999
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Long-term Histopathologic Findings in Two Cerebral Aneurysms Embolized with Guglielmi Detachable Coils
Enrique Castro, Fernando Fortea, Francisco Villoria, Cesar Lacruz, Balbina Ferreras, Rafael Carrillo
American Journal of Neuroradiology Apr 1999, 20 (4) 549-552;

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Long-term Histopathologic Findings in Two Cerebral Aneurysms Embolized with Guglielmi Detachable Coils
Enrique Castro, Fernando Fortea, Francisco Villoria, Cesar Lacruz, Balbina Ferreras, Rafael Carrillo
American Journal of Neuroradiology Apr 1999, 20 (4) 549-552;
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  • Complex-Shaped Platinum Coils for Brain Aneurysms: Higher Packing Density, Improved Biomechanical Stability, and Midterm Angiographic Outcome
  • Bone Formation in Elastase-Induced Rabbit Aneurysms Embolized with Platinum Coils: Report of 2 Cases
  • Brain Aneurysms and Arteriovenous Malformations: Advancements and Emerging Treatments in Endovascular Embolization
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  • Histopathologic and Immunohistochemical Comparison of Human, Rabbit, and Swine Aneurysms Embolized with Platinum Coils
  • Angiographic and Histologic Analysis of Experimental Aneurysms Embolized with Platinum Coils, Matrix, and HydroCoil
  • Endovascular Treatment of Intracranial Wide-Necked Aneurysms Using Three-Dimensional Coils: Predictors of Immediate Anatomic and Clinical Results
  • Increasing the Packing of Small Aneurysms with Complex-Shaped Coils: An In Vitro Study
  • Matrix and Bioabsorbable Polymeric Coils Accelerate Healing of Intracranial Aneurysms: Long-Term Experimental Study
  • Histological Findings in Ruptured Aneurysms Treated with GDCs: Six Examples at Varying Times after Treatment
  • Endovascular Microcoil Gene Delivery Using Immobilized Anti-adenovirus Antibody for Vector Tethering
  • Cellular Responses of Bioabsorbable Polymeric Material and Guglielmi Detachable Coil in Experimental Aneurysms
  • Cyanoacrylate Embolization of Experimental Aneurysms
  • Role of Electrothrombosis in Aneurysm Treatment with Guglielmi Detachable Coils: An In Vitro Scanning Electron Microscopic Study
  • Delivery of Human Vascular Endothelial Growth Factor with Platinum Coils Enhances Wall Thickening and Coil Impregnation in a Rat Aneurysm Model
  • Delayed Reconfiguration of a Guglielmi Detachable Coil Mass Associated with Late Occlusion of an Adjacent Aneurysm and Parent Vessel
  • Endovascular Treatment of Ruptured Posterior Circulation Cerebral Aneurysms : Clinical and Angiographic Outcomes
  • INTERVENTIONAL NEURORADIOLOGY
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