scholarly journals Unruptured aneurysm arising from fenestrated anterior cerebral artery, associated with accessory anterior cerebral artery and accessory middle cerebral artery, with a quasi-moyamoya disease of neurofibromatosis type 1: case report

Nosotchu ◽  
2021 ◽  
Author(s):  
Hirotsugu Ohta ◽  
Hirohisa Kondoh ◽  
Takeru Umemura ◽  
Koh-ichirou Futatsuya ◽  
Hiromi MasakI ◽  
...  
Keyword(s):  
Case Report ◽  
Middle Cerebral Artery ◽  
Moyamoya Disease ◽  
Cerebral Artery ◽  
Neurofibromatosis Type 1 ◽  
Anterior Cerebral Artery ◽  
Neurofibromatosis Type ◽  
Unruptured Aneurysm ◽  
Accessory Middle Cerebral Artery

Intracerebral malignant peripheral nerve sheath tumor in a child with neurofibromatosis Type 1 and middle cerebral artery aneurysm treated with endovascular coil embolization

2011 ◽  
Vol 8 (4) ◽  
pp. 346-352 ◽  
Author(s):  
Michael J. Ellis ◽  
Samuel Cheshier ◽  
Sunjay Sharma ◽  
Derek Armstrong ◽  
Cynthia Hawkins ◽  
...  
Keyword(s):  
Peripheral Nerve ◽  
Middle Cerebral Artery ◽  
Cerebral Artery ◽  
Neurofibromatosis Type 1 ◽  
Coil Embolization ◽  
Neurofibromatosis Type ◽  
Nerve Sheath Tumor ◽  
Nerve Sheath ◽  
Endovascular Coil Embolization

Among the neoplastic conditions that affect patients with neurofibromatosis Type 1 (NF1) are malignant peripheral nerve sheath tumors (MPNSTs), which typically arise from peripheral nerves of the limbs, trunk, and lumbar and brachial plexuses. Ionizing radiation is an established risk factor for MPNST development, especially in susceptible patients such as those with NF1. Patients with NF1 are also at risk for intracranial aneurysms, which are increasingly being successfully managed with endovascular therapies. The authors describe the case of a 9-year-old, previously healthy girl who presented in extremis with a right frontal intracerebral hemorrhage resulting from a ruptured right middle cerebral artery (MCA) trifurcation aneurysm. Following urgent decompressive craniectomy, the patient underwent endovascular coil embolization of the MCA aneurysm without complication. Given her mother's history of NF1, the child underwent genetic testing, which disclosed signs positive for NF1. The patient recovered well, but follow-up MR imaging and MR angiography performed at 14 months demonstrated a large frontotemporal mass encasing the right MCA trifurcation. The patient underwent frontotemporal craniotomy and subtotal resection of the mass, which was histologically found to be an intracranial MPNST. The patient received chemotherapy and focal radiation therapy and remains alive at 6 months postresection. To the authors' knowledge, this represents the only known case of intracranial neoplasm arising in the region of an intracranial aneurysm repaired by endovascular coil embolization. While patients with NF1 represent a population with genetic susceptibility to radiation-induced tumors, the pathogenesis of intracerebral MPNSTs remains poorly understood.

The Accessory Middle Cerebral Artery: Anatomic Report

2008 ◽  
Vol 63 (suppl_1) ◽  
pp. ONS10-ONS14 ◽  
Author(s):  
Cassius V.C. Reis ◽  
Joseph M. Zabramski ◽  
Sam Safavi-Abbasi ◽  
Ricardo A. Hanel ◽  
Pushpa Deshmukh ◽  
...  
Keyword(s):  
Middle Cerebral Artery ◽  
Moyamoya Disease ◽  
Cerebral Artery ◽  
Anterior Cerebral Artery ◽  
Inferior Frontal Gyrus ◽  
Cerebral Aneurysms ◽  
Optic Chiasm ◽  
Inferior Surface ◽  
Increased Risk ◽  
Accessory Middle Cerebral Artery

Abstract Objective: An accessory middle cerebral artery (MCA) usually originates between the A1 and proximal A2 segment of the anterior cerebral artery, reaches the sylvian fissure, and supplies the territory of the MCA. This anomaly has been associated with cerebral aneurysms and Moyamoya disease. We report an accessory MCA arising from the A2 segment. Methods: A cadaveric head, fixed in formalin solution and injected with red and blue silicone on its vascular tree to trace intracranial and extracranial vessels, was dissected. Results: An accessory MCA was found arising from the A2 segment of the anterior cerebral artery and feeding the basal and inferior surface of the inferior frontal gyrus. In our specimen, the vessel was associated with intracranial aneurysms at other locations. Conclusion: Although anomalies of the MCA are rare, neurosurgeons must be familiar with such anatomic variations. An accessory MCA can be associated with Moyamoya disease and aneurysms at its junction with the anterior cerebral artery. Patients with this anomaly may, therefore, have an increased risk for developing aneurysms and other neurovascular complications. By obstructing the surgical view, an accessory MCA may increase the difficulty of exposing lesions in the vicinity of the optic chiasm.

Dissecting aneurysms of the anterior cerebral artery and accessory middle cerebral artery. Case report

1997 ◽  
Vol 20 (2) ◽  
pp. 145-148 ◽  
Author(s):  
Yasunari Otawara ◽  
Michiyasu Suzuki ◽  
Miyuki Abe ◽  
Nobuhiko Tomizuka ◽  
Akira Ogawa
Keyword(s):  
Case Report ◽  
Middle Cerebral Artery ◽  
Cerebral Artery ◽  
Anterior Cerebral Artery ◽  
Accessory Middle Cerebral Artery ◽  
Dissecting Aneurysms

Dystrophic Lumbar Kyphoscoliosis Associated with Giant Dural Ectasia in a 19-Year-Old Patient with Neurofibromatosis Type 1. Case Report

2020 ◽  
Vol 2 (10) ◽  
pp. 1926-1930
Author(s):  
Nicolas Plais ◽  
Peter H. Connolly ◽  
Renaud Lafage ◽  
Debra Jacobs ◽  
Virginie Lafage ◽  
...  
Keyword(s):  
Case Report ◽  
Neurofibromatosis Type 1 ◽  
Neurofibromatosis Type ◽  
Dural Ectasia

Widespread deformation of the tongue in a neurofibromatosis type 1 patient: A case report

2017 ◽  
Vol 29 (6) ◽  
pp. 555-558
Author(s):  
Gen Udagawa ◽  
Takuya Naganawa ◽  
Akira Kumasaka ◽  
Yasuhiro Fujimoto ◽  
Yuichi Akagi ◽  
...  
Keyword(s):  
Case Report ◽  
Neurofibromatosis Type 1 ◽  
Neurofibromatosis Type
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