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Imaging of Uncommon GI/GU Disorders Case 2

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alright, so now

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another young gentleman 26 year old male right up

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a quadrant pain. And this was interesting in that the patient got

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a I'll just tell you the history got a CAT scan showing no real

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abnormality that got an ultrasound where they couldn't find

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the gallbladder. They got a Hiatus scan that showed no

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uptake in the gallbladder. And so they were like

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well, you know worried about cholecystitis potentially,

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but because there's

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no uptake in the gallbladder, but the or potentially,

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you know, the gallbladder was just absent but

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there's no history of Prior Kohl's hystectomy. So they got another Imaging modality

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to sort of sort this out and that's what I'll share with a group.

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Somebody's asking why renal Pharaoh in the right? Kidney is

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working perfectly. I think that I miss

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you. I'm not really sure to be honest. I think I was just a history that was provided.

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I think oftentimes we get these generic histories, but they certainly

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were not this is the second case. Yes, somebody's

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asking but certainly perhaps a

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left kidney was dysfunctional enough that it was affecting

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the overall renal function in the patient.

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So let me show the second case. It's an MR a few

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more sequences to look at and I'm happy to you know, scroll through some selected sequences

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and I'm happy to scroll through more

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of the group once okay, so I'll start up with the t2fatsat sequence. Remember, this

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is a young patient right upper quadrant pain HIDA scan

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showed no uptake in the gallbladder, but, you know,

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they weren't really worried about clinically about cholecystitis.

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But person also never had a cholecystectomy. So they're

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just wondering

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What's going on with the gallbladder? What's going on in this patient? So here's

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the

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t2fatsat sequence

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Right, you can see a bunch of organs here spleen kidneys

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adrenal glands.

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Probably just sort of hone your eyes to the

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sorts of things that you may be worried about given this.

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History is the coronal T2 image.

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And I'll show you a myth of the MRCP that

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helps at all.

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These images didn't come out too. Great. I'd imagine so I'm not sure

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this will help you but let's look at the

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Excuse me, the T1 pre.

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- let's give

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you a post contrast sequence in the arterial phasers. Look gonna

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be a little bit of motion here. So

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I'll say that I not sure if the motion

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will affect.

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Don't think it should affect your interpretation of.

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What's going on? There's no mass or anything that I'm asking

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you to characterize. It's just this is probably the best sequence the

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portalena's face.

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Got some of the other organs again.

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So the question they're really asking is you know, what what's going

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all the gallbladder that inflamed. Is it

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missing? He's had no prior history cholecystectomy.

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I see a few.

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People in the chat box. I'm just gonna address that in the second

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while I go through the final set of sequences. I wanted to share with the group is the in and

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out of phase out of face on this side and face on this side.

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All right,

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there you have it. So I'm just going to put up.

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Let's see.

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Go back

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to this box here. Okay, let's see we have here. Yeah, so

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somebody describe that there are multiple pancreatic

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system. So that is a good observation. It's a

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correct observation as well. It's a maybe useful

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observation scleros and colonitis. Okay can

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generally absent golf better. You know, I suppose that can happen.

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I yeah anything can be continually absent. I

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haven't really seen a case of that but I'm sure

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if I go to radiopedia, it's there fatty liver. That's another correct

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observation. I don't see a call platter. Yeah, that's that's that's

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absolutely correct David. That's that's the tough part here.

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Is it there is it really really small app since missing gallbladder? Yeah

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cystic duct obstructive Stone.

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Okay. So a lot of good thoughts portal means a

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little dilated. Let's look at that observation day. Do you

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remember being a little bit big?

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Yeah, it looks a little bit big. I don't know if it's

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maybe a little bit bigger than normal. I agree with you. I'm not

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sure if it's pathologically big but the

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question I have for group is is that the one thing I'm sort

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of emitting obviously here is that

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MRP again? I'll show that the one thing I'm admitting from

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the group.

5:00

is that

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The patient has some underlying history. There's an underlying.

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History that this patient has that I haven't given the group.

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but that

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disease into that rare disease entity as it were.

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all sort of put together

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Couple of observations that the group is made. Somebody asked us

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closingitis. I think it's a good thought my own experience

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perhaps it's just with some of the mrtps that we get. It's a little bit tough on

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the mrsp to look for that. I like to look at those on the post contrast sequences.

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And what I'm looking for is areas of

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ductal dilatation and narrowing which

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is strictures and on the post Contour sequences bile will

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be dark as it contains fluid. And so you'll see areas of biliary

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reductibilitation and then you won't see that bile duct and then you'll see it

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again as it dilates and you won't see that bottled up and so you sort of have these alternating areas

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or multifocal and so if you

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just look at you know that, you know, the the post Contra

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sequences which are thinner slices you really don't

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see any ducks that are dilated nor do you see a CBD that's dramatically affected

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and so I was one of the thoughts of somebody in

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the group had but

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You know, I don't know if I see convincing evidence of that based on

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these images. And so

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let me see the chat feature. Where is the group going?

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Okay, here we go. Here we go congenital absence

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missing gallbladder bronze diabetes.

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Oh, I haven't heard that term in

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a long time. Thank you for igniting some

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some memories there. Some Ron

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is asking about cystic fibrosis which seems to be out there. But I appreciate them

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putting themselves

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with that diagnosis a true

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eight. Try to get topic gallbladder. Okay PSC static

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fibrosis Colonial position gallbladder

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over long CBD PSC also going

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to be pancreasics CFT are okay. Okay. So

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yeah, this is nice. I I like that

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people are starting to not only

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get warmer trying to figure

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out the disease is that they've absolutely nailed it

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and so I won't torture the group anymore. Thank you for your

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engagement. Ladies and gentlemen, this is

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a case of cystic fibrosis is what the patient had and the reason

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I wanted to

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With the group is you know, listen, you know, you

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know in our in our patient population, you know, we we do see cystic fibrosive time

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in the classic case that we all see that we all

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show in sort of case conferences of that fatty atrophic, you

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know, the fatty pancreas the absence of the pancreas and I'm sure

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if I showed you that case you guys would be you know, why why did

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I even tune into the seminar?

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I know that I know that day in and out

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one thing that

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that I learned a little bit later on in my training was the

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you know, the other manifestations of

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cystic fibrosis in the abdomen and pulse and that

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sort of is always interesting and it's almost now I look for those

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manifestations because the ones that we see all the time are so

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burned in my memory and one of the things you can see is

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multiple multiple pancreatic cysts. They're diffused

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just like here and it's thought to beat

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you to inspipated secretions, which dilate the Ducks these are not

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neoplastic. This person will not develop cancer as

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a result of these cysts, but you can see it best on the t2 aided

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sequence multiple multiple systems the first comment that I think somebody

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made which is good for you to recognize that and you

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know, you can certainly see cysts like

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this, you know in other conditions but you know,

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maybe in chronic pancreatitis you can multiple times but the

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pancreas there is very very trophy in those instances. And so

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that's one of the manifestation to cystic fibrosis is

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something called pancreatic cystosis, and you can

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also sometimes get some calcifications so it can

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look like

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Pancreatitis so that sometimes gets confusing that's even

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rare. But when you see these cyst, that's what you

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have to think about. Well, the other things that patients with cystic fibrosis can

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get in the abdomen is hepatocytosis, but that

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itself is not

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You know, is that an important finding because

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we see that in our patient population all the time, but certainly this

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patient has hepatic stytosis. So that's that's not subtle and

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then the final question which I think is the most

9:06

unfair question. But but there

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it is is where is the gallbladder? Right

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and so I think a few people say can generally absent Gall better. I'm sure

9:17

that exists and and certainly that's

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something that I would have thought about if I'm scrolling in the setting but if

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you know a little bit about cystic fibrosis, you'll

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know that there are some call that automatic stations of cystic

9:29

fibrosis one of which is for some reason this really one

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of my favorite entities is micro micro gallbladder.

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So I think some people in the chat box had a

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credit gallbladder and I think the term is micro gallbladder, but

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I tried it is very reasonable. So my goal here is to find the

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gallbladder and believe it or not. This is the only sequence which I could find it right over

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here is your gallbladder.

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It's small. There's nothing else. This is going to be it's not a loop

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of bowel. It's not a bile duct. It's right with a gallbladder should

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be and it's really small. It's micro. In fact, you know,

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and I looked up the definition of micro gallbladder

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because I'm sure there are people in the in the group that

10:06

They'll want to know about Michael. You

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know, how do you define it? And you know, I think

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a ballpark number that I looked at I think is easier

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to remember is like two centimeters in width by one centimeter in in

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transverse time it two centimeters in length

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by one centimeters in transverse diameter to be honest.

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I'm not going about measuring these call patterns, but we all have a sense of

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what a normal gallbladder. Perhaps should look like even if

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it's collapsed.

10:31

This is Tiny. And so this patientistic

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so is in fact it's you know, knowing that

10:37

we're not surprised that we couldn't even see

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any uptake in the gallbladder. Some of the inspected secretions. I think somebody's

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talked about that the chat box will contribute to

10:47

to the micro gallbladder. Maybe that's the theory of why it's

10:50

very small but even it, you know, even if there was uptake in

10:53

this, you know, good luck perhaps finding that

10:56

in the context of the highest scan or even an ultrasound think it'd be very tough and it

10:59

was very tough on the CT. I happen to read the CT on

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this patient. I do remember seeing it and and mentioning my report micro

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gallbladder because it's just one of those manifestations that

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you can see assistive and there are others in

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the admin politics you get distill intestinal obstructive syndrome. They can

11:14

have also issues with the stamina vesicles and males and so this

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was a case of cystic fibrosis to

11:20

the micro gallbladder.

11:21

And so let me share this this slide

11:24

with you to for a few

11:27

words about cystic fibrosis autosomal recessive and one of the things

11:30

that I think it's important for us to know about these other manifestations Beyond

11:33

say the chest and the nor in a

11:36

and the most common manifestations in other organs is that you know, we've

11:39

had better.

11:40

Treatment algorithms for patientistic fibrosis. And

11:43

so these patients are surviving longer and so you end

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up seeing you know, you will in Time end up seeing more different

11:49

manifestations of that. We don't that we

11:52

haven't traditionally seen and in the pancreas of course

11:55

fatty replacement is the most common but you can see these cysts

11:58

for the reason that was that I mentioned they're

12:01

very small. They replace the pancreas the San

12:04

Diego pancreatic cystosis. You can sometimes also see califications

12:07

and that's thought to be some data abnormal physiological that

12:11

promotes calcium binding

12:13

and so these patients don't have chronic pancreatitis. It's

12:16

just calcifications a tiny calcification associated with

12:20

Cystic fibrosis stewtosis, you can see up to 50% of

12:23

patients. So that's pretty obvious. You look at the endophase images and

12:26

the micro golf. I look at that almost a third that's not

12:29

an uncommon amount. I suppose, you know, and so

12:32

and thought to be either Treaty of the cystic

12:35

doctor chronic stenosis and something to do with the way the

12:38

secretions are manifested in these patients. A lot

12:42

of people mentioned PSE they can get PSC type picture in

12:45

in their Ducks. This person did not have that but that's a

12:48

possibility. So I think it's a good thing to look for and of

12:51

course another organs in the battle. They can

12:54

get distal intestinal obstructions in your ass to look at that from time to

12:57

time. Would you this top? I'm not sure if this

13:00

helps even an impatience that's one of the questions that are being

13:03

asked I find that even with patients in normal gallbladders

13:06

is very seldom that I see the gold or filling up really nicely. It

13:09

might help in the sense that it you

13:12

have this will increase the background the signal

13:16

intensity of the liver prank. And so maybe you see a small

13:19

sort of

13:20

micro gallbladder the gallbladder fossa as

13:23

a dark signal amidst the variety of list

13:26

Haida. In fact was done in this case that one of the other panelists people

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are asking about Ida it

13:32

was actually done in this case. They didn't see the gallbladder.

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And so my end of one based on this case was suggest

13:37

that the height I would not help or at least it did not help in this case.

Report

Faculty

Mahan Mathur, MD

Associate Professor of Radiology & Biomedical Imaging, Vice-Chair of Education & Director of Medical Student Education in Radiology

Yale School of Medicine

Tags

Pancreas

MRI

Liver

Gastrointestinal (GI)

Gallbladder