De Novo Formation of Cavernoma After Radiosurgery for Adult Cerebral Arteriovenous Malformation -Case Report-

• MOTEGI Hiroaki

  Department of Neurosurgery, Hokkaido University Graduate School of Medicine

• KURODA Satoshi

  Department of Neurosurgery, Hokkaido University Graduate School of Medicine

• ISHII Nobuaki

  Department of Neurosurgery, Hokkaido University Graduate School of Medicine

• AOYAMA Hidefumi

  Department of Radiology, Hokkaido University Graduate School of Medicine

• TERAE Satoshi

  Department of Radiology, Hokkaido University Graduate School of Medicine

• SHIRATO Hiroki

  Department of Radiology, Hokkaido University Graduate School of Medicine

• IWASAKI Yoshinobu

  Department of Neurosurgery, Hokkaido University Graduate School of Medicine

書誌事項

タイトル別名

• —Case Report—

抄録

A 47-year-old male underwent stereotactic radiosurgery (25 Gy) for a cerebral arteriovenous malformation located in the right caudate nucleus, using a linear accelerator. Complete obliteration of nidus was confirmed 20 months after radiosurgery. However, a hypointense mass on T₂-weighted magnetic resonance imaging developed in the area adjacent to the nidus after approximately 80 months. The mass gradually increased in size and induced severe perifocal edema over 2 years. The mass was successfully excised. Histological examination revealed that the mass consisted of dilated sinusoid vessels attached to the hematoma capsule, and the hematoma included clots in various stages of organization encapsulated by dense collagenous tissue. The histological diagnosis was cavernoma. De novo formation of cavernoma is well known to occur after radiation surgery for intracranial tumor, especially in pediatric patients, but is rare in adults. Based on the radiological and histological findings in the present case, the radiation-induced cavernoma underwent repeated bleedings resulting in chronic encapsulated expanding hematoma.<br>

収録刊行物

• Neurologia medico-chirurgica

  Neurologia medico-chirurgica 48 (9), 397-400, 2008

  一般社団法人 日本脳神経外科学会

キーワード

• arteriovenous malformation
• radiosurgery
• complication
• cavernoma

詳細情報

• CRID: 1390001205052107520
• NII論文ID: 110006937253
• NII書誌ID: AN00358613
• DOI: 10.2176/nmc.48.397
• ISSN: 13498029
• ISSN: 04708105
• Web Site: http://www.jstage.jst.go.jp/article/nmc/48/9/48_9_397/_pdf
• Web Site: https://search.jamas.or.jp/link/ui/2009030026
• 本文言語コード: en
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