Middle Cerebral Artery Fenestration

Lazar, Martin L.; Bland, James E.; North, Richard R.; Bringewald, Peter R.

doi:10.1097/00006123-198003000-00014

Cited by 6 publications

(3 citation statements)

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“…Obvious MCA fenestration anomalies can be detected by magnetic resonance angiography, 18) but some small anomalies cannot be detected even by conventional angiography. 3,12) The incidence rates of MCA fenestrations detected by conventional angiography and autopsy are 0.17-0.43% 4,7,17) and 0.28-1%, 1,20) respectively. These variations can be attributed to the deficiencies of angiography, which may occasionally visualize fenestrated vessels as superimposed vessels.…”

Section: Discussionmentioning

confidence: 99%

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Coil Embolization of a Ruptured Aneurysm Arising From a Middle Cerebral Artery Fenestration -Case Report-

Yamaguchi

Ito

Suzuki

2010

Neurol. Med. Chir.(Tokyo)

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An 81-year-old woman was transferred to our hospital after suffering loss of consciousness. Computed tomography revealed subarachnoid hemorrhage. Angiography revealed middle cerebral artery fenestration and a ruptured aneurysm arising from the inferior limb of the fenestrated artery. Coil embolization of the aneurysm and the proximal portion of the inferior limb was performed, and she showed good recovery after the procedure. Ruptured aneurysms associated with middle cerebral artery fenestration are very rare, but may occasionally have complex structures that complicate lesion treatment, so coil embolization should be considered in some cases.

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Section: Discussionmentioning

confidence: 99%

“…An autopsy revealed that no perforators emerged from a fenestrated artery. 20) In another study, 12) intraoperative observation of the MCA fenestration accompanied by a ruptured internal carotidposterior communicating artery aneurysm revealed that the fenestration existed proximal to the lenticulostriate artery.…”

mentioning

confidence: 96%

Coil Embolization of a Ruptured Aneurysm Arising From a Middle Cerebral Artery Fenestration -Case Report-

Yamaguchi

Ito

Suzuki

2010

Neurol. Med. Chir.(Tokyo)

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“…Most of previous articles on the MCA fenestration focused on the association of cerebral aneurysm located at the site of fenestration or distant site from it. In the review of previous reports, 19 cases were coincided with cerebral aneurysms 1,5,7,[12][13][14][15][16][17][18][19]24,29,30,33) and 6 cases of aneurysm developed at the proximal or distal end of fenestration 5,12,18,19,24,30) . Other data indicated that the MCA fenestration was developed mainly at the M1 portion and there was no ethnic predilection between Asian and Western countries.…”

Section: Discussionmentioning

confidence: 99%

Cerebral Aneurysm in the Long Fenestration at the Middle Portion of M1 Segment

Sim

Lee

Park

et al. 2010

J Korean Neurosurg Soc

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J Korean Neurosurg Soc 48 : [434][435][436][437] 2010 We report a unique case of bilateral mirror image M1 aneurysms, one of which was an unruptured aneurysm arising from the proximal end of right middle cerebral artery fenestration with long loop and the other ruptured aneurysm from the contralateral side. We clipped ruptured aneurysm first and unruptured one in three months after the first operation. The difficulties of identifying this unusual vascular anomaly and possible problems during the surgery of an aneurysm at the site of fenestration are discussed with a review of the literature.

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Intracranial Arteries - Anatomy and Collaterals

Liebeskind

Caplan

2016

Frontiers of Neurology and Neuroscience

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Anatomy, physiology, and pathophysiology are inextricably linked in patients with intracranial atherosclerosis. Knowledge of abnormal or pathological conditions such as intracranial atherosclerosis stems from detailed recognition of the normal pattern of vascular anatomy. The vascular anatomy of the intracranial arteries, both at the level of the vessel wall and as a larger structure or conduit, is a reflection of physiology over time, from in utero stages through adult life. The unique characteristics of arteries at the base of the brain may help our understanding of atherosclerotic lesions that tend to afflict specific arterial segments. Although much of the knowledge regarding intracranial arteries originates from pathology and angiography series over several centuries, evolving noninvasive techniques have rapidly expanded our perspective. As each imaging modality provides a depiction that combines anatomy and flow physiology, it is important to interpret each image with a solid understanding of typical arterial anatomy and corresponding collateral routes. Compensatory collateral perfusion and downstream flow status have recently emerged as pivotal variables in the clinical management of patients with atherosclerosis. Ongoing studies that illustrate the anatomy and pathophysiology of these proximal arterial segments across modalities will help refine our knowledge of the interplay between vascular anatomy and cerebral blood flow. Future studies may help elucidate pivotal arterial factors far beyond the degree of stenosis, examining downstream influences on cerebral perfusion, artery-to-artery thromboembolic potential, amenability to endovascular therapies and stent conformation, and the propensity for restenosis due to biophysical factors.

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Middle Cerebral Artery Fenestration

Cited by 6 publications

References 0 publications

Coil Embolization of a Ruptured Aneurysm Arising From a Middle Cerebral Artery Fenestration -Case Report-

Coil Embolization of a Ruptured Aneurysm Arising From a Middle Cerebral Artery Fenestration -Case Report-

Cerebral Aneurysm in the Long Fenestration at the Middle Portion of M1 Segment

Intracranial Arteries - Anatomy and Collaterals

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