Question 1

re: brain mri - what is the difference between a lesion and an infarction?

Accepted Answer

Brain MRI: Lesion = anything abnormal, usually used to describe a growth (neoplasms).  Infarction = stroke or vascular insufficiency or occlusion.

Question 2

what is the difference between a lesion, a blister, a vesicle, and a open sore ?

Accepted Answer

Lesion, blister, : Hey lesion is basically a spot on the skin with something unusual happening to it. The blisters it waterfield lesion on the skin. A blister and a vesicle are basically the same except that the size of a blister is thought to be usually larger than vesicle. Open sores are exactly that, weeping serum and sometimes crust over.

Question 3

what is the difference between an infra- and supratentorial lesion?

Accepted Answer

One explanation -: Normally this equates to a level of the nervous system- supra= above the ears (approximately) or infra=below.

The tentorium cerebelli separates the cerebrum (the popular, highly functional part of the brain) from the cerebellum, brain stem and spinal cord (the old fashioned, simple, automatic? parts).

Sometimes supratentorial is a term used to describe unexplained or imagined symptoms.

Question 4

is there a difference between a perfectly round skin lesion and an irregular shaped one? i have a round one that seems almost inflamed, have no med in

Accepted Answer

Yes: The shape of lesions are important. Have a dermatologist check this.

Question 5

what is the difference between a colon polyp and a colon lesion?

Accepted Answer

Specific vs general: A colon polyp is a more specific type of a colon lesion. A colon lesion can be any type of colon abnormality including cancer, polyp, ulcer, atrophy, avm, etc.

Question 6

how do they tell the difference between a malignant and benign ovarian lesion on an ultrasound?

Accepted Answer

Not always clear cut: Purely simple, smooth ovarian cysts are considered benign. Cysts with debris, septations or nodules along their walls can be concerning. Sometimes we do follow up ultrasound to see if they grow. If there is enough concern, MRI helps. Correlation with patient age, family history, blood tests and possibly biopsy also help us be sure.

Question 7

what is the difference between a non active white matter brain lesion and an active one?

Accepted Answer

Contrast enhancement: Active  white matter lesions tend to contrast enhance on MRI. Inactive lesions do not. You can see contrast enhancement on a contrasted CT scan but you cant see  a lot of the MS plaques that are there without MRI sequences designed to identify MS plaques (FLAIR sequences and to a lesser extent T2 weighted images will reveal MS lesions that would escape detection otherwise.

Question 8

what's a difference between  2mm  cystic focus (seen on 2d images of mrcp,but not seen on t1w  post contrast images on  the same mrcp) and 2mm cystic lesion?would appreciate any radiologist answear?

Accepted Answer

MRCP reading: The only one who can read this well is the one who read it.  I am not a shadow Dr. and always review all films on my patients with the radiologist.  Discuss with your team.

Question 9

what's a difference between 2mm cystic focus (detected/seen on a 2d images of mrcp, but not detected/seen on t1w post contrast images on  same mrcp) and 2 mm cystic lesion? would appreciate any radiologist answear?

Accepted Answer

Cyst better : Most pancreatic cyst that do not enhance may be so called pancreatic pseudocyst. Generally an enhancement may be possible inflammation or cancer. So keeping it simple, no enhancement better.

Question 10

i got my mri results yday! whats the difference between a hyperintensity/lesion on a brain mri?

Accepted Answer

Hyperintensity: refers to the how a spot looks on a particular MRI sequence (usually a FLAIR or T2 weighted image.)
Quite often we see tiny white spots in the white matter in people with migraine. These can be of no consequence or indicate inflammation (vasculitis) With MS we tend to see T2 /FLAIR lesions that are larger and in characteristic  locations. Ask your doctor what he thinks.

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Doctor answers about:

The difference between a lesion and a polop

A member asked:

Re: brain mri - what is the difference between a lesion and an infarction?

A member asked:

What is the difference between a lesion, a blister, a vesicle, and a open sore ?

A member asked:

What is the difference between an infra- and supratentorial lesion?

A member asked:

Is there a difference between a perfectly round skin lesion and an irregular shaped one? i have a round one that seems almost inflamed, have no med in

A member asked:

What is the difference between a colon polyp and a colon lesion?

A member asked:

How do they tell the difference between a malignant and benign ovarian lesion on an ultrasound?

A member asked:

What is the difference between a non active white matter brain lesion and an active one?

A member asked:

What's a difference between 2mm cystic focus (seen on 2d images of mrcp,but not seen on t1w post contrast images on the same mrcp) and 2mm cystic lesion?would appreciate any radiologist answear?

A member asked:

What's a difference between 2mm cystic focus (detected/seen on a 2d images of mrcp, but not detected/seen on t1w post contrast images on same mrcp) and 2 mm cystic lesion? would appreciate any radiologist answear?

A member asked:

I got my mri results yday! whats the difference between a hyperintensity/lesion on a brain mri?

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