Value of Perfusion Weighted Magnetic Resonance Imaging in the Diagnosis of Supratentorial Anaplastic Astrocytoma |
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| Authors: | Kyung Mi Lee Eui Jong Kim Geon-Ho Jahng Bong Jin Park |
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| Affiliation: | 1.Department of Radiology, Seoul National University Bundang Hospital, Seongnam, Korea.;2.Department of Radiology, Kyung Hee University Hospital, School of Medicine, Kyung Hee University, Seoul, Korea.;3.Department of Radiology, Kyung Hee University Hospital at Gangdong, School of Medicine, Kyung Hee University, Seoul, Korea.;4.Department of Neurosurgery, Kyung Hee University Hospital at Gangdong, School of Medicine, Kyung Hee University, Seoul, Korea. |
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| Abstract: | 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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| Keywords: | Anaplastic astrocytoma MRI Perfusion weighted MRI |
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