Meningiomas are readily visualized with contrast CT, MRI with gadolinium, and arteriography, all attributed to the fact that meningiomas are extra-axial and vascularized. CSF protein is usually elevated if lumbar puncture is attempted.
Though the majority of meningiomas are benign, they can have malignant presentations.
Classification of meningiomas are based upon the WHO classification system.
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Though the majority of meningiomas are benign, they can have malignant presentations.
Classification of meningiomas are based upon the WHO classification system.
- Benign (Grade I) - (90%) - meningothelial, fibrous, transitional, psammomatous, angioblastic (most aggressive)
- Atypical (Grade II) - (7%) - choroid, clear cell, atypical (includes brain invasion)
- Anaplastic/malignant (Grade III) - (2%) - papillary, rhabdoid, anaplastic
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email : gamma@gammaknifeonline.in
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ReplyDeletemeningioma