Value of Perfusion Weighted Magnetic Resonance Imaging in the Diagnosis of Supratentorial Anaplastic Astrocytoma.
10.3340/jkns.2014.56.3.261
- Author:
Kyung Mi LEE
1
;
Eui Jong KIM
;
Geon Ho JAHNG
;
Bong Jin PARK
Author Information
1. Department of Radiology, Seoul National University Bundang Hospital, Seongnam, Korea.
- Publication Type:Case Report
- Keywords:
Anaplastic astrocytoma;
MRI;
Perfusion weighted MRI
- MeSH:
Adult;
Astrocytoma*;
Blood Volume;
Brain;
Brain Neoplasms;
Corpus Callosum;
Diagnosis*;
Edema;
Female;
Frontal Lobe;
Glioma;
Humans;
Magnetic Resonance Angiography;
Magnetic Resonance Imaging*;
Perfusion*;
Permeability;
World Health Organization
- From:Journal of Korean Neurosurgical Society
2014;56(3):261-264
- CountryRepublic of Korea
- Language:English
-
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.
