Spinal accessory nerve cavernous malformation

Hazzard, Matthew; Patel, Neal B.; Hattab, Eyas M.; Horn, Eric M.

doi:10.1016/j.jocn.2009.04.021

Cited by 4 publications

(2 citation statements)

References 22 publications

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“…To the best of our knowledge, 69 cases of CN CMs have been reported to date, namely in the III nerve (5 cases),[2740434748] IV nerve (3 cases),[334546] VI nerve (1 case),[37] cerebellopontine angle (27 cases, involving VII/VIII complex and other nerves not specified),[135–7916181926293642] XI nerve (1 case),[23] and XII nerve (1 case). [12]…”

Section: Discussionmentioning

confidence: 99%

Cranial nerve cavernous malformations causing trigeminal neuralgia and chiasmal apoplexy: Report of 2 cases and review of the literature

Morais¹,

Mascarenhas²,

Soares-Fernandes³

et al. 2012

Surg Neurol Int

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Background:Cavernous malformations (CMs) confined to the cranial nerves (CN) are extremely rare lesions.Case Description:The authors report 2 cases of CMs, one involving the trigeminal nerve presenting with a 3 years history of a refractory right trigeminal neuralgia that was microsurgically resected by a retromastoid approach with resolution of the neuralgia; and another CM involving the chiasma with an abrupt onset of vision loss with acute intralesional bleeding that was removed through a right pterional approach with vision improvement.Conclusion:Surgical resection is recommended in the context of progressive significant neurological deficit, emergency decompression as a result of recent hemorrhage for symptomatic relief or increase in size on serial magnetic resonance imaging (MRI).

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Section: Discussionmentioning

confidence: 99%

Cranial nerve cavernous malformations causing trigeminal neuralgia and chiasmal apoplexy: Report of 2 cases and review of the literature

Morais¹,

Mascarenhas²,

Soares-Fernandes³

et al. 2012

Surg Neurol Int

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“…23 The lesion was located extracranially, at the level of the atlas. Histopathology was typical for a CM.…”

Section: Spinal Accessory Nerve and Aovmsmentioning

confidence: 99%

Angiographically occult vascular malformation of the intracranial accessory nerve: case report

Terterov¹,

McLaughlin²,

Vinters

et al. 2016

JNS

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A ngiogrAphicAlly occult cerebral vascular malformation (AOVM) is a clinicoradiographic term that describes a heterogeneous group of entities, including cavernous malformations (CMs), thrombosed arteriovenous malformations, venous malformations, capillary telangiectasias, and mixed vascular malformations. 48 These account for 5%-15% of all cerebral vascular lesions, with a general population prevalence estimated at 0.3%-0.5%. Approximately half of AOVMs occur sporadically, while the other half are inherited in an autosomaldominant pattern. Given that histologically most AOVMs are CMs, the current literature concerns patient populations with CMs. Indeed, only a minority of AOVMs are venous malformations, arteriovenous malformations, or mixed vascular malformations. 52,56 CMs are found within the brain parenchyma in approximately 95% of cases, with spinal CMs accounting for 5%. Of the intracranial CMs, 80% are supratentorial and 20% are infratentorial.33 CMs usually have a characteristic appearance on MRI with a mixed T2 signal intensity reticulated core surrounded by a rim of decreased signal intensity. However, smaller lesions can appear as small areas of decreased signal intensity. 24,57 Uncommonly, CMs (as the most common form of AOVMs) can be found within the cavernous sinus, basal cisterns, cauda equina, and cranial nerves. 10,41,43,44 Although CMs have been previously reported to be associated with almost all cranial nerves, their involvement of the lower cranial nerves is extremely rare. We report a case of an angiographically occult vascular malformation (AOVM) arising from the intracranial portion of the spinal accessory nerve, with pathological confirmation of nerve fibers traversing the lesion. case report History and PresentationA 46-year-old woman presented with a history of episodic frontal headaches and episodes of nausea and dizabbreviatioNs AVOM = angiographically occult cerebral vascular malformation; CM = cavernous malformation; SMA = smooth muscle actin. Angiographically occult cerebral vascular malformations (AOVMs) are usually found in the supratentorial brain parenchyma. Uncommonly, AOVMs can be found within the cavernous sinus or basal cisterns and can be associated with cranial nerves. AOVMs involving the intracranial segment of the spinal accessory nerve have not been described. A 46-year-old female patient presented with a history of episodic frontal headaches and episodes of nausea and dizziness, as well as gait instability progressing over 6 months prior to evaluation. Imaging revealed a well-circumscribed 3-cm extraaxial T1-weighted isointense and T2-weighted hyperintense contrast-enhancing mass centered in the region of the right lateral cerebellomedullary cistern. The patient underwent resection of the lesion. Although the intraoperative appearance was suggestive of a cavernous malformation, some histological findings were atypical, leading to the final diagnosis of vascular malformation, not otherwise specified. The patient's postoperative course was uneventful with complete resol...

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Anterior interhemispheric approach for microsurgical resection of an optic chiasm cavernoma

Sbeih

Darwazeh

Shehadeh

et al. 2020

Interdisciplinary Neurosurgery

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Spinal accessory nerve cavernous malformation

Cited by 4 publications

References 22 publications

Cranial nerve cavernous malformations causing trigeminal neuralgia and chiasmal apoplexy: Report of 2 cases and review of the literature

Cranial nerve cavernous malformations causing trigeminal neuralgia and chiasmal apoplexy: Report of 2 cases and review of the literature

Angiographically occult vascular malformation of the intracranial accessory nerve: case report

Anterior interhemispheric approach for microsurgical resection of an optic chiasm cavernoma

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