0:01

So here's another pattern that we sometimes see when

0:03

we have segmental neural hyperenhancement, and you've

0:06

probably all seen this before when you have this inner wall

0:09

that's more enhancing than the rest of the wall.

0:13

So in that prior case, it was kind of a diffuse

0:15

hyperenhancement throughout the bowel wall.

0:20

Now, some people call this mucosal hyperenhancement,

0:23

but I think that that's probably not the

0:25

best word or way to describe this, and that's

0:29

what the expert opinion is saying as well.

0:32

Instead of using mucosal hyperenhancement, the

0:34

preferred terminology is calling it inner wall

0:36

hyperenhancement or a bilaminar pattern of

0:39

hyperenhancement, and that's because the mucosa in

0:42

these cases is often disrupted and sloughed, and so,

0:45

the part that you would think would be mucosa

0:48

on that inner wall may be totally absent.

0:50

And so when you say mucosal enhancement,

0:52

it's somewhat misleading

0:53

because the mucosa may be totally gone.

0:55

So using the term inner wall hyperenhancement is preferred.

0:57

24 00:00:59,925 --> 00:01:02,635 Well, this is often seen with Crohn's disease, and it's,

1:02

it's a fairly typical and expected enhancement pattern.

1:06

It's not an entirely specific pattern either.

1:09

Other things can cause this.

1:11

It can be due to some

1:13

fat in the bowel that's inflamed or

1:15

edema in the bowel that's inflamed.

1:17

So it's not a specific finding for Crohn's disease.

1:21

However, it is an important thing

1:23

to recognize and to talk about.

1:25

When you see this on an early phase,

1:27

it does indicate there's some degree

1:29

of active inflammation, most likely.

1:32

So that's it.

1:33

That's one pattern of enhancement.

1:34

And then we'll look at a couple other

1:35

patterns on the following cases.