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Ependymoma - MRI
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Heterogeneous tumor
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Solid components iso- to hyperintense on T2/FLAIR
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T2 hyperintense cysts frequently seen
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Hypointense areas reflect calcification and/or hemorrhage
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Usually iso- to hypointense on T1
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Enhancement is variable
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Post. fossa tumors grow to fill 4V; may invade brainstem