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  • Title: Development of chronic encapsulated intracerebral hematoma after radiosurgery for a cerebral arteriovenous malformation.
    Author: Takeuchi S, Takasato Y, Masaoka H, Hayakawa T, Otani N, Yoshino Y, Yatsushige H, Sugawara T.
    Journal: Acta Neurochir (Wien); 2009 Nov; 151(11):1513-5. PubMed ID: 19597762.
    Abstract:
    BACKGROUND: We report a rare case of chronic encapsulated intracerebral hematoma (CEIH) after radiosurgery for a cerebral arteriovenous malformation (AVM). METHODS: Seven years after radiosurgery, magnetic resonance imaging revealed a high-intensity mass in the right basal ganglia with a peripheral low signal ring and fluid level on both T1- and T2-weighted images, which was compatible with CEIH. RESULTS: Stereotactic evacuation and placement of an Ommaya reservoir were performed. CONCLUSION: The concentration of vascular endothelial growth factor was high in the hematoma, suggesting that CEIH may be similar to chronic subdural hematoma.
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