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Journal of Korean Neurosurgical Society 1994;23(5): 538-547. |
| Correlations between MRI and Histopathologic Findings in Intracranial Meningioma. |
| Hee In Kang, Young Soo Kim, Yong Ko, Sung Hoon Oh, Suck Jun Oh, Nam Kyu Kim, Kwang Myung Kim, Seung No Lee, Chang Kok Ham, Eun Kyung Hong |
1Department of Neurosurgery, Callege of Medicine, Hanyang University, Seoul, Korea.
2Department of Radiology, Callege of Medicine, Hanyang University, Seoul, Korea.
3Department of Pathlogy, Callege of Medicine, Hanyang University, Seoul, Korea. |
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| ABSTRACT |
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The histopathologic findings of the intracranial meningima are variegated and those of magnetic resonance imaging (MRI) which has been used for preoperative evaluation are also varied in signal characteristics. In order to aid the preoperative diagnosis, authors analyzed MRI and microscopic findings in twenty eight meningioma cases which underwent surgery. The results were summarized as follows : 1) Meningothelial, fibrous and transitional subtypes showed isointense signal on T1-weighted image and iso and/or hyperintense signal T2-weighted and proton density images compared to the signal intensity of the gray matter. 2) Microcystic subtype was isointense signal on T1-weighted image and hyperintense signal on T2-weighted and proton density images. 3) Variation of signal intensity might be correlated to the ratio of the stroma in the tumor. 4) Peritumoral edema was not closely related to the pathologic subtypes or location of meningioma, but it seemed to be correlated with the size of tumor. |
| Key Words:
Magnetic resonance image; Meningoma; Signal intensity; Pathologic subtype; Edema |
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