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Dilemmas and diagnostic difficulties in meningioma
J T P D Hallinan1, A N Hegde, W E H Lim
1Department of Diagnostic Radiology, Singapore General Hospital, Singapore. jim.hallinan@gmail.com
Abstract:
This article will review the uncommon locations and morphological features of meningiomas, which are important to recognize in order to avoid misdiagnosis. Uncommon locations will be demonstrated at the cerebellopontine angle, pineal, optic, intraventricular, and intradiploic regions. Unusual imaging features including cysts, metaplastic changes, and peritumoural oedema will also be discussed.
Insights
This review highlights rare locations and imaging features of meningiomas to prevent misdiagnosis. Recognizing these unusual presentations is crucial for accurate diagnosis of these brain tumors.
Area of Science:
- Neurology
- Radiology
- Oncology
Background:
- Meningiomas are typically found along the surface of the brain.
- Uncommon presentations can lead to diagnostic challenges.
Purpose of the Study:
- To review uncommon locations of meningiomas.
- To discuss unusual morphological and imaging features of meningiomas.
- To aid in avoiding misdiagnosis of meningiomas.
Main Methods:
- Review of literature on meningioma imaging.
- Case study analysis of atypical meningiomas.
Main Results:
- Meningiomas can occur in the cerebellopontine angle, pineal, optic, intraventricular, and intradiploic regions.
- Unusual imaging findings include cystic components, metaplastic changes, and peritumoural edema.
- These features can mimic other pathologies.
Conclusions:
- Awareness of rare meningioma locations and imaging characteristics is essential for clinicians.
- Improved recognition can enhance diagnostic accuracy and patient management.
- Further research into atypical meningioma presentations is warranted.
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