what is foci on brain mri

[monotreme]

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.

[ishtianay]

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

[Suzi69]

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!

[Quixotic1]

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

[Quixotic1]

A few definitions :

Focus - spot

Foci

[Quixotic1]

A few definitions :

Focus - spot

Foci

[Hope38]

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.

[6-paq]

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!!!

[Hope38]

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