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KMID : 1001920140560030261
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Journal of Korean Neurosurgical Society
2014 Volume.56 No. 3 p.261 ~ p.264
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Value of Perfusion Weighted Magnetic Resonance Imaging in the Diagnosis of Supratentorial Anaplastic Astrocytoma
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Lee Kyung-Mi
Kim Eui-Jong
Jahng Geon-Ho
Park Bong-Jin
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Abstract
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We report perfusion weighted imaging (PWI) findings of nonenhanced anaplastic astrocytoma in a 30-year-old woman. Brain magnetic resonance imaging showed a nonenhanced brain tumor with mild peritumoral edema on the right medial frontal lobe and right genu of corpus callosum, suggesting a low-grade glioma. However, PWI showed increased relative cerebral blood volume, relative cerebral blood flow, and permeability of nonenhanced brain tumor compared with contralateral normal brain parenchyma, suggesting a high-grade glioma. After surgery, final histopathological analysis revealed World Health Organization grade III anaplastic astrocytoma. This case demonstrates the importance of PWI for preoperative evaluation of nonenhanced brain tumors.
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KEYWORD
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Anaplastic astrocytoma, MRI, Perfusion weighted MRI
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