Malignant Nerve Sheath Tumor of the Right Cerebral Peduncle: Case Report

Beauchesne, Patrick; Mosnier, Jean‐François; Schmitt, Thierry; Brunon, J

doi:10.1227/01.neu.0000103491.18482.e3

Cited by 30 publications

(37 citation statements)

References 10 publications

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“…However, these findings were not specific to intraparenchymal schwannoma and always resulted in tentative preoperative diagnoses of low grade glioma. 3,4,12,18,19,23,25,28,31) Although the tumor in our case fulfilled two of the characteristic features, the possibility of an intraparenchymal schwannoma was not considered because we were not aware of this rare entity preoperatively.…”

Section: Discussionmentioning

confidence: 79%

“…11) However, thorough immunohistochemical investigations were performed in only 41 cases, based on our literature review. 1,[3][4][5][6][7][8][9]12,13,[16][17][18][19][20][21][22][23][24][25][26][28][29][30][31] Only these cases were considered in the following discussion. Unlike vestibular schwannomas, intraparenchymal schwannomas tend to occur in young patients, with slight male predominance ( Table 1).…”

Section: Discussionmentioning

confidence: 99%

“…Among those, only four were reported to be associated with neurofibromatosis 8,21,24) and eight were reported to be malignant. 4,8,16,20,21,25,26,29) The tumors were located in both the supratentorial and infratentorial regions (Table 1) and could be further classified as superficial or periventricular (34% and 66% respectively, based on 29 of the reviewed cases with data). Cases of intraventricular, sellar, or duralattached schwannoma had also been reported.…”

Section: Discussionmentioning

confidence: 99%

“…Since there are no specific radiological and pathological findings characteristic of intraparenchymal schwannomas, their rarity always resulted in a tentative diagnosis of gliomas preoperatively and even intraoperatively. 3,4,12,18,19,23,25,28,31) However, the treatment, including the surgical management, would be totally different, so it is important to distinguish this uncommon neoplasm from its radiological and pathological mimics, especially low grade gliomas.…”

Section: Introductionmentioning

confidence: 99%

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Periventricular Intraparenchymal Schwannoma

Khoo

Taki

2012

Neurol. Med. Chir.(Tokyo)

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A 60-year-old male presented with a rare case of periventricular schwannoma. Imaging studies revealed a partially calcified, well-enhanced tumor in the periventricular area of the left frontal horn. The preoperative diagnosis was low grade glioma, but postoperative pathological findings revealed that the tumor was schwannoma. Most intraparenchymal schwannomas are benign, so total extirpation is usually curative. However, this uncommon neoplasm is difficult to distinguish from mimics, especially low grade gliomas, with only preoperative radiological findings or intraoperative pathological findings. Based on our experience and analysis of the characteristic radiological and pathological features in previous cases, we suggest that an accurate intraoperative diagnosis is possible. The key element is the combination of correct interpretation of the intraoperative pathology analysis and careful evaluation of the preoperative radiological studies. An appropriate intraoperative judgment is important, because the treatment, including the surgical management, would be totally different for schwannoma and glioma.

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Section: Discussionmentioning

confidence: 79%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Periventricular Intraparenchymal Schwannoma

Khoo

Taki

2012

Neurol. Med. Chir.(Tokyo)

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“…[5][6][7]9,25,43,[45][46][47]50 Although schwannomas tend to occur in individuals with NF2 and schwannomatosis, studies have documented an association of intracerebral schwannomas with NF1. 8,13,16,33,35 Most reported cases have been seen in children or young adults.…”

Section: Discussionmentioning

confidence: 99%

Intracerebral schwannomas: a rare disease with varying natural history

Scott

Koral²,

Margraf

et al. 2013

PED

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Although intracerebral schwannomas are typically regarded as benign intracranial tumors, malignancy and recurrence have been reported among patients harboring such neoplasms. The available literature consists of case reports and small series that present variable characteristics distinguishing these unusual lesions. Little advancement has been made to further the understanding and management of these tumors. The authors present 3 cases from their institution that highlight the difference between typical benign intracerebral schwannomas and histopathological variants that may portend more aggressive behavior. Also provided is a review of the literature in the hope of gaining a better understanding of these rare tumors.

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Intrazerebral lokalisiertes Sarkom NOS – eine interdisziplinäre Herausforderung

Holzmeister

Schindler²,

Aichholzer³

et al. 2007

Strahlenther Onkol

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In cases of intracerebrally localized sarcomas NOS, the earliest possible start of radiotherapy after surgery seems useful because of the noticed radiosensitivity of these tumors. In regard of the local control, this tumor entity shows a documented excellent response to radiotherapy. Expectedly, distant metastases cannot be influenced. Interdisciplinary cooperation is mandatory to enhance the diagnostic process, the treatment decisions, and the results.

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Malignant Nerve Sheath Tumor of the Right Cerebral Peduncle: Case Report

Abstract: An accurate diagnosis and planned aggressive treatment seem to be the key elements in the management of the disease.

Cited by 30 publications

References 10 publications

Periventricular Intraparenchymal Schwannoma

Periventricular Intraparenchymal Schwannoma

Intracerebral schwannomas: a rare disease with varying natural history

Intrazerebral lokalisiertes Sarkom NOS – eine interdisziplinäre Herausforderung

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