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Causes of cerebral intravascular enhancement?

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Not a radiologist. Not asking case specific interpretation. Just a dumb med student trying to answer a conceptual question I can’t figure out.

Image Context: 12 months episodic cough/fever/encephalopathy (transient confusion, right limb weakness, nausea, dizziness, etc.) positive fungal serologies. EEG: general slowing + focal slowing in left mid frontal lobe.

Region of encephalopathy noted by EEG doesn’t show any parenchymal changes, but does have brightly enhanced vessels extending from cortex to ventricles.

My question isn’t so much about this case but more conceptually, what sorts of chronic pathologies can cause enhancement limited to the vessels? Most of what I find pertains to acute ischemia which doesn’t seem relevant here.

Example is T1 post gad. PD/rainbow just because my phone camera couldn’t capture the contrast well on the original image

https://imgur.com/a/nVlSqmO

submitted by /u/EdgarSwitchblade
[link] [comments]

source https://www.reddit.com/r/Radiology/comments/11nvc6w/causes_of_cerebral_intravascular_enhancement/
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