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General
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Case reports
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Treatment
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Gross description
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Gross images
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Tumor displaces brain without invading

Compression of underlying cortex

Resected tumor

Adherent to falx cerebri

Micro description
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Grade I variants
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Micro images
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Angiomatous (trichrome stains)

Fibroblastic variant

Lipomatous variant

Lymphoplasmacytic rich variant is CD45+

Meningothelial variant

Meningothelial variant

Meningothelial-intraosseous
hyperostotic occipital

Mengiothelial with hemosiderin


Microcystic variant

Lacelike pattern of fibrillary stellate cells

Pleomorphic cells

Pseudo-astrocytic appearance

ProgR+ and EMA+


Psammomatous

Xanthomatous

With cholesterol clefts

With pleomorphic cells

Cytology description
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Cytology images
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Meningothelial tumor

Whorl

Whorl and psammoma body

Scattered tumor cells

Mass at base of skull with inclusions and grooves

Virtual slides
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Meningothelial meningioma

Positive stains
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Negative stains
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Molecular / cytogenetics description
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Molecular / cytogenetics images
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Idiotype of 22-

Electron microscopy description
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Differential diagnosis
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Additional references
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End of CNS tumor > Meningeal tumors > Meningioma



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