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Typical Meningioma with Atypical MR Imaging Features Masquerading Malignancy. A Case Report
Hung-Wen Kao1, Cheng-Yu Chen, Chun-Jen Hsueh
1Department of Radiology, Tri-Service General Hospital, National Defense Medical Center, Neihu; Taipei, Taiwan, Republic of China - sandy0928@seed.net.tw.
The Neuroradiology Journal
|December 5, 2013
Summary
Meningiomas, common brain tumors, can present with unusual imaging features that may mislead diagnosis. This case highlights a fibrous meningioma with atypical magnetic resonance imaging characteristics.
Area of Science:
- Neurology
- Neurosurgery
- Radiology
Background:
- Meningiomas are the most common extraaxial intracranial neoplasms, typically benign with characteristic features.
- Histologically typical meningiomas can exhibit unusual or misleading imaging findings.
- Atypical presentations can include large meningeal cysts, ring enhancement, and metaplastic changes.
Purpose of the Study:
- To present a case of fibrous meningioma with atypical magnetic resonance (MR) imaging features.
- To discuss the diagnostic challenges posed by unusual meningioma imaging characteristics.
Main Methods:
- Case report of a 76-year-old woman.
- Magnetic resonance (MR) imaging analysis.
Main Results:
- The fibrous meningioma demonstrated atypical MR imaging features.
- These atypical features initially suggested differential diagnoses other than meningioma.
Conclusions:
- Fibrous meningiomas can present with misleading imaging findings.
- Awareness of atypical presentations is crucial for accurate meningioma diagnosis.
