Upcoming Events
Log In
Pricing
Free Trial

FDG Case: LHIAS

HIDE
PrevNext

0:00

Let's look at this case where there is an abnormal uptake

0:05

centered at the heart.

0:07

In this patient, uh, we see a couple

0:09

of areas on the meep images.

0:13

Normally we have the blood pool and we may

0:15

or may not have myocardial uptake,

0:17

as we've seen on the prior horses.

0:21

This patient, uh, had the pet done

0:25

to evaluate a right lung nodule that we can see here

0:29

that it's very intensely avid.

0:31

However, incidentally, we found

0:34

that there was uptake in the heart, so if the g can be used

0:39

for, uh, evaluation of cardiac masses.

0:42

However, when we see this,

0:45

we should feel comfortable of what it is.

0:49

Look at where the uptick, localizes

0:52

and is in the fat

0:53

between the right atrium in the left atrium.

0:57

And this is a common pitfall called lipato hypertrophy

1:02

of the intra atrial septum.

1:04

And why is it hot?

1:07

It's because this is a variant in,

1:11

its basically an area of focal brown fat.

1:15

So the same way you can see brown fat in the neck,

1:19

the chest, or the areas of the abdomen.

1:22

You can also see it here.

1:24

I always mention it, but nothing has to be done about this.

1:28

A common question that I get from the clinicians is,

1:32

do we have to follow this up?

1:33

And the answer is no.

1:35

And the reality is that in a patient that may have these,

1:40

uh, shown in one pit, it might be not hot

1:45

or not avid on the subsequent.

1:48

So we don't know exactly what these response to,

1:52

but it's commonly seen.

1:55

Once you've seen one, you will feel comfortable

1:58

for the next one.

Report

Faculty

Elisa Franquet Elia, MD

Assistant Professor of Radiology

UMass Chan Medical School

Tags

Response and assessment

PET/CT FDG

PET

Oncologic Imaging

Nuclear Medicine

General Oncologic Imaging Concepts

Congenital