Histologic Evidence for Arteriovenous Malformation-Like Vasculature Occurring within an Intracerebral Schwannoma: A Case Report and Review of the Literature

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• 作者：Bayard R. Wilson¹ ; Jeffrey A. Steinberg² ; ^{J1steinberg@ucsd.edu" class="auth_mail" title="E-mail the corresponding author} ; Vivian Snyder³ ; Michael N. Jiang¹ ; Bob S. Carter²
• 关键词：Arteriovenous malformation ; Intracerebral ; Intraparenchymal schwannoma ; Schwannoma
• 刊名：World Neurosurgery
• 出版年：2016
• 出版时间：August 2016
• 年：2016
• 卷：92
• 期：Complete
• 页码：582.e9-582.e13
• 全文大小：3741 K

文摘

The phenomenon of intracerebral schwannoma is exceedingly rare, and its etiology still a matter of debate. No documented cases of intracerebral schwannoma containing vascular elements consistent with those of an arteriovenous malformation (AVM) have been reported. We describe such a case here.

Case Description

A left temporal intraparenchymal lesion was discovered incidentally in a 34-year-old man after he suffered a mild trauma. The lesion was resected and found on histologic examination to be an intracerebral schwannoma with AVM-like vasculature. The patient made a full recovery after resection.

Conclusions

To our knowledge, this is the first case of an intracerebral schwannoma with AVM-like characteristics to be reported in the literature. We hypothesize that the co-occurrence of this rare pathologic entity is caused by an interrelated etiologic process, with the tumor microenvironment of the schwannoma inciting the development of the vascular malformation.