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Wk 3, Case 4 - Review

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0:04

Yes, this is a breast cancer patient, um, which

0:10

we should get more of.

0:11

We don't get a lot of, unfortunately. Right.

0:14

I wish we do get more of, okay,

0:20

what is the, let me see a little bit of history.

0:25

Triple-negative, right?

0:27

Usually more aggressive cancer, more hypermetabolic cancer.

0:32

Um, poorly differentiated, of course.

0:34

Um, coming for initial teething.

0:37

So we go over

0:39

and you see here is the interestingly, right, look at that.

0:42

This is biopsy. Of course you see

0:44

a, a clip, a surgical clip.

0:45

Here's the tumor, which is here not

0:48

as impressively hot, right?

0:51

And it is in, um,

0:53

and you know how the, you guys know

0:55

how the breast cancer usually, um, breast masses, um,

1:00

usually they like to either you, um, uh,

1:06

divide the breast into four, four quadrants

1:10

or like the clockwise.

1:11

So this is in the upper outer quadrant of the right breast.

1:14

And look here how it's like the whole breast is,

1:17

there's like kind of, um, diffuse low grade, uh, high DG

1:21

of the breast, right?

1:23

And just

1:30

this is the mass, this is the primary mass.

1:32

Here's the intense activity. Kind of intense activity.

1:36

Um, I'm not gonna throw in the volume of interest.

1:39

I already mentioned how hot it is. It's not that hot.

1:41

See, it's 4.7, which is really not impressively hot.

1:45

Maybe because of the, like, I don't know if they just,

1:48

this is not post-surgical, right?

1:50

It's not all right. It's just impressive.

1:53

Like how, see here in the map, it's impressive how the,

1:56

the primary site is not as hot.

1:58

But how, see how hot is the, the static lymph node?

2:03

It is, right? Okay.

2:06

Now you look at this primary site,

2:08

and then again, the staging is what we looking at.

2:10

So you look at the node dam metathesis

2:13

and accelerate lymph node is uh, three levels.

2:16

They divide them into three levels.

2:18

And the, the, the anatomic mar, um,

2:24

landmark is the pectoralis mine, which is this one.

2:26

This is pics major, right?

2:27

And here's your pictor mine, right?

2:30

So level one is lateral level two is is

2:34

posterior right?

2:37

And level three is medial.

2:42

Do you guys see that the three levels

2:44

of accelerate lymph node,

2:51

then you go up and we have the infraclavicular.

2:58

Yes, absolutely.

2:59

The DCIS are not very hot, but triple negative.

3:02

This is triple negative. This is not DCIS.

3:06

Oh, you mean the metastatic lymph node?

3:08

But the D-D-C-I-S-D-C-I-S will

3:10

have me metastatic lymph node.

3:13

Yeah, it's been a while since I did this breast.

3:19

I used to do breast more eye research.

3:22

I'm trying to think in DCIS,

3:28

doesn't it have to be in, doesn't it have

3:30

to have invasive component to have, uh,

3:31

metastatic lymph nodes?

3:34

Yeah, I mean, exactly. That's what I'm trying to say.

3:36

It has to have some inva, some invasive component

3:40

to have metastatic lymph node.

3:42

But this patient has triple negative.

3:44

I mean, I think maybe the cancer,

3:46

I have to dig into the pathology.

3:48

Maybe the cancer was small and, um,

3:51

and this is not the only, the first time in Dota teeth.

3:54

A lot of time the metastatic disease is

3:56

hotter than the primary site.

3:58

And especially in the small bowel.

4:00

Um, the med gut net, the primary site is not

4:04

as impressive, but the metastatic disease is

4:06

extensively hotter.

4:09

So it's not the first time I see that.

4:11

But I was impressed how the, here, in this case,

4:13

the primary site is really not impressive.

4:15

But the, the study is very hot. Right? Okay.

4:20

So, um, again, it's,

4:25

so this patient has, um, this,

4:28

this patient doesn't have any STEM metastatic disease,

4:30

but, um, it's all lymphatic,

4:32

but there's a lot of lymph nodes.

4:33

See, and in, in the breast cancer, uh, staging also,

4:36

they do care about the number

4:38

of lymph nodes in the N one, N two and N three.

4:41

But also once it gets into, um, the infraclavicular

4:45

and tub vicular and tub br clavicular, uh, lymph nodes,

4:48

it becomes in, uh, in two, I think

4:54

Two I think it becomes in,

4:59

um, in, yeah, infraclavicular is in

5:03

Three becomes in three in infraclavicular is N three A

5:08

and, and subra clavicular is N three B.

5:12

And these makes the cancer, um,

5:17

Stage three, stage three C basically.

5:23

So again, it's another, so just always know that, um,

5:29

the nodal disease is just not simply the, the pa the patient

5:34

is, there's metastas to the lymph nodes

5:36

and there's no distant mets.

5:38

Uh, no, which nodes are,

5:42

how far are the nodal metastasis go is important in the

5:46

staging of, uh, the patient as well.

5:48

This patient didn't have any distant metastasis. Okay.

5:52

And also, like a lot of time we can, oh,

5:54

another thing I wanted to show here is this,

5:56

because not a lot of people know about this.

5:59

These nodes here, do you see these nodes guys here?

6:03

It's in between the picts measure and pectoralis minor.

6:06

These are called, uh, pectoral

6:09

or, um, router, uh, nodes.

6:14

Um, so when you try to, um, assign the level, we know,

6:18

like I said, um, lateral tores, miner, Tora, minor media,

6:23

Tora, miner, um, these are the three levels.

6:27

But then you'll find those that are in between.

6:31

And in this case, you won't care much

6:32

because there are, they are not the hottest or the largest,

6:35

and you don't have to report them,

6:37

and you don't report all the nodes.

6:38

Usually I just give a big sentence in my reports

6:42

for the whole nodal disease

6:44

and then give the, you know, like two

6:46

or three examples, um, and move.

6:48

But, um, sometimes you might find a patient

6:51

that the only node is this node,

6:53

and then you have to describe where's this node.

6:56

So this is, this is why you have to know about this node.

6:58

And usually breast cancer patients, this is a node that is,

7:01

uh, known for breast cancer patient,

7:03

but it's an unusual node.

7:06

I think this is it about this patient.

7:07

Nothing special about this, this study, this patient, except

7:10

that.

Report

Please note: Items with dashed lines (--) are information withheld as it is not relevant for you to arrive at the correct findings and impression for the report and/or it was withheld for privacy information. The items were left in to show you the typical information documented in a PET report.

Clinical Indication:
Right breast triple negative poorly differentiated invasive ductal carcinoma, initial staging.

Technique:
Preparation: Last oral intake (except water) on --at --.
Diabetic: --.
Blood glucose at time of FDG administration: --- mg/dL.
Radiopharmaceutical: -- mCi of F-18 FDG administered IV at -- at --.
Incubation interval: -- minutes.
Oral contrast: --.
Positioning: Arms raised
PET/CT scanner: ---.
PET/CT acquisition: Vertex-to-midthigh.
PET reconstruction method: ---
Standardized uptake value (SUV): Corrected for body weight only.
CT: Low-dose, non-breath-hold, without intravenous contrast.
TOTAL DLP (Dose Length Product): -- mGy cm.

Comparison/Correlation:
No relevant prior imaging for comparison

Findings:
Technical quality: Diagnostic.
Measurements: Unless otherwise specified, all SUVs refer to maximum value in the target (mSUV) and all CT linear measurements are performed on axial images.

Reference: mean SUV liver: ----

Head and Neck:
No suspicious hypermetabolic activity in the head or neck.
No suspicious cervical adenopathy.


Breast:
Moderately hypermetabolic 19 x 12 mm mass within the upper outer quadrant of the right breast with a surgical clip and a maximum SUV 4.7, consistent with biopsy-proven invasive ductal carcinoma.
Multiple enlarged and intensely hypermetabolic metastatic right axillary, interpectoral, and subpectoral lymph nodes. For reference:

The largest interpectoral lymph node measures 1.5 cm with maximum SUV 12.8.
The largest right axillary lymph node measures 1.5 cm with maximum SUV 9.7.
Moderately hypermetabolic metastatic 7 x 5 mm right internal mammary lymph node maximum SUV 4.


Chest:
No suspicious metabolically active lesions within the chest.
No suspicious metabolically active or pathologically enlarged hilar or mediastinal adenopathy.
No suspicious pulmonary nodules or masses.
No pleural effusion, pericardial effusion or pneumothorax.
Left chest port with terminus in the right atrium.


Abdomen and Pelvis:
No suspicious hypermetabolic activity in the abdomen or pelvis.
Solid Abdominal Organs:
No focal hypermetabolic activity in the liver significantly greater than the heterogeneous physiologic uptake. Unremarkable noncontrast appearance of the liver.
Cholecystectomy.
No hydronephrosis.
Unremarkable spleen.
No suspicious adrenal masses.
No suspicious pancreatic findings.
GI Tract/Mesentery/Peritoneum:
Physiologic bowel activity, without suspicious focal FDG uptake. The large and small bowel appear normal in caliber.
No suspicious peritoneal/mesenteric findings.
Lymph Nodes: No pathologically enlarged or hypermetabolic lymph nodes in the abdomen or pelvis.
Pelvic Viscera: Bulky uterine fundus, possibly fibroid.
Vasculature: Normal caliber of the abdominal aorta.
Free Fluid: No ascites or drainable fluid collection.


Skeleton and Soft Tissues:
No suspicious metabolically active osseous or soft tissue lesions.
No aggressive lytic or sclerotic lesions.
Multilevel degenerative changes.

Impression:
1. Hypermetabolic mass in the upper outer quadrant of the right breast, consistent with biopsy proven invasive ductal carcinoma.
2. Multiple enlarged and hypermetabolic metastatic right axillary and internal mammary lymph nodes.
3. No convincing evidence of metabolically active distant metastatic disease.

Case Discussion

Faculty

Riham El Khouli, MD

Associate Professor of Radiology, Chief, Division of Nuclear Medicine/Molecular Imaging & Radiotheranostics

University of Kentucky

Michael F. Shriver, MD

Director of Nuclear Medicine

Proscan-NCH Imaging

Tags

PET/CT FDG

PET

Nuclear Medicine

Female Breast

CT

Breast