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glioma [2026/06/05 16:07] – [Primary Brain Tumors on MRI] scottglioma [2026/06/05 16:31] (current) – scott
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 {{::fspgr_cancer_ventricle.gif?|}}   {{::flair_cancer_ventricle.gif?|}} {{::fspgr_cancer_ventricle.gif?|}}   {{::flair_cancer_ventricle.gif?|}}
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 +====Metastatic Brain Tumors====
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 +Metastatic disease occurs when a tumor elsewhere in the body breaks of small cancer cells that travel through the bloodstream to other parts of the body. Often called 'mets', when occurring in the brain there may be many overlapping imaging characteristics with primary brain tumors but with a tendency for a few exceptions:
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 +  * Commonly contrast enhancing
 +  * Multifocal; more than one spot
 +  * Commonly well demarcated; edges of the tumor are clear
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 +**Hemangiosarcoma** is a tumor that often metastasizes into the brain and can demonstrate many small hemorrhages in the brain tissue on T2* weighted imaging:
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 +{{::hemangio_merge.gif?|}}  {{::hemangio_t1fs_c.gif?|}}
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 +{{::ax_merge.gif?|}}
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 +{{::swanhemangiosevere.gif?|}}
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