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what is foci on brain mri
You all have been a help to me already but wanted to know exactly what is "foci" on a brain mri.  I have a couple 4mm foci according to brain mri.  Are foci "bright spots"?  When I look at the mri on my computer, I see bright white spots.  
Thank you.
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Wish I could help you........I have 3 foci on my report, I have no idea what they are.....where is your foci?  Mine are on my Frontal lobe.  When I look at my MRI I see white spots too........maybe someone will tell us lol

Lisa
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230625 tn?1216764664
My report says "focal alterations", "foci" and "focal area".  I've understood that terminology to indicate areas of signal intensity during the MRI sequences, i.e. "lesions".  But, I'm not an expert  :).

I have 2 "focal alterations" in my MRI ~ one is a "focal area" and one is a "foci".  Maybe it indicates size??

I'm sure our experts here can further clarify this for us!  LOL!!!
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230625 tn?1216764664
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I just re looked at my brain mri......my pictures loop but I see many white spots.....I found under one of the pictures it said ax T2 Flair.......Now what is this?  It wasn't mentioned in the MRI.
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147426 tn?1317269232
A few definitions :

Focus - spot

Foci
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147426 tn?1317269232
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147426 tn?1317269232
A few definitions :

Focus - spot

Foci
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147426 tn?1317269232
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147426 tn?1317269232
huh??  I apperar to be stuttereing........

Foci -(plural of focus) - more than one spot

Focal alterations - localized spots of changes in the tissue appearance

Foci of Increased signal - spots or small areas of bright spots

T2 FLAIR - you have to go to the thread I wrote on "How MRI's How MS Lseions"  I bumped it tothe front midway down I answer (sort of the difference) between T1, T2 and T2 FLAIR images.

Quix
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147426 tn?1317269232
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The 'Impression' at the bottom of my MRI Report states
  Three subcentimeter nonspecific foci T2 lengthening in the white matter; this is nonspecific, the differential includes multiple sclerosis with other etiologies not excluded'

What does this mean?
Thanks!
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I don't know if my question got posted. If it did sorry for asking again. I has MRI it showed several small nonspecific foci of abnormal T2 signal changes in the deep white matter. Is that around the brain stem and cerebellum? Thanks
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