0:01

This is a case of a 57-year-old female

0:03

that had an abnormal CT chest that showed

0:08

left hilar lesion and left lower lobe collapse.

0:13

There was a concern for obstructive malignancy

0:17

and a pity was performed for farther staging.

0:23

So here we have the FDG PET in which show

0:26

that there is an intense tracer uptake centrally

0:31

obstructing the left lower lobe with SUV max

0:36

of 7.2 distal to the mass.

0:40

There is a collapse of the left lower lobe

0:43

and this collapsed s parenchyma shows theuse low level

0:47

of tracer uptake.

0:49

In this case, we can define where the lesion is compared

0:53

to the remainder of the collapsed lung.

0:56

So the distal to the endobronchial

1:00

presumed in the bronchial obstructive lesion there is

1:04

atelectasis or possibly post obstructive infection,

1:09

so PET can help us delineate the extent of the disease.

1:13

In this patient, there was no concern for novel

1:17

disease in the chest

1:20

and there was no evidence of distant

1:24

metastatic disease elsewhere.

1:27

This patient underwent treatment

1:30

and a subsequent pet CT was performed.

1:33

The baseline PET cts at the bottom row

1:36

and the subsequent pit is, uh,

1:38

I'm showing you on the top row.

1:41

As you can see, there has been disease progression locally

1:45

in the left lower lobe.

1:46

This mass has become necrotic and is larger,

1:51

but it's also more FDG abbit.

1:54

There's also new disease involving lymph nodes

1:58

of the left lower parital,

2:00

no tation like I'm showing here on the top

2:04

and new disease.

2:07

Also in the left cardio phrenic angle

2:10

with several FDG abbot lymph nodes.

2:14

In addition, there is metastatic disease in the pleura

2:18

as we can see it by this foci of uptake

2:23

posteriorly in the left pleura

2:24

that were not present on the prior.

2:27

In this case, there was no disease outside of the uh,

2:31

intra thora findings, but this patient progressed

2:34

and now has metastatic disease.

FDG Case: Lung Cancer Delineation

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Interactive Transcript

Pro Tip: Click on a word in the transcript to jump to that point in the video

0:01

This is a case of a 57-year-old female

0:03

that had an abnormal CT chest that showed

0:08

left hilar lesion and left lower lobe collapse.

0:13

There was a concern for obstructive malignancy

0:17

and a pity was performed for farther staging.

0:23

So here we have the FDG PET in which show

0:26

that there is an intense tracer uptake centrally

0:31

obstructing the left lower lobe with SUV max

0:36

of 7.2 distal to the mass.

0:40

There is a collapse of the left lower lobe

0:43

and this collapsed s parenchyma shows theuse low level

0:47

of tracer uptake.

0:49

In this case, we can define where the lesion is compared

0:53

to the remainder of the collapsed lung.

0:56

So the distal to the endobronchial

1:00

presumed in the bronchial obstructive lesion there is

1:04

atelectasis or possibly post obstructive infection,

1:09

so PET can help us delineate the extent of the disease.

1:13

In this patient, there was no concern for novel

1:17

disease in the chest

1:20

and there was no evidence of distant

1:24

metastatic disease elsewhere.

1:27

This patient underwent treatment

1:30

and a subsequent pet CT was performed.

1:33

The baseline PET cts at the bottom row

1:36

and the subsequent pit is, uh,

1:38

I'm showing you on the top row.

1:41

As you can see, there has been disease progression locally

1:45

in the left lower lobe.

1:46

This mass has become necrotic and is larger,

1:51

but it's also more FDG abbit.

1:54

There's also new disease involving lymph nodes

1:58

of the left lower parital,

2:00

no tation like I'm showing here on the top

2:04

and new disease.

2:07

Also in the left cardio phrenic angle

2:10

with several FDG abbot lymph nodes.

2:14

In addition, there is metastatic disease in the pleura

2:18

as we can see it by this foci of uptake

2:23

posteriorly in the left pleura

2:24

that were not present on the prior.

2:27

In this case, there was no disease outside of the uh,

2:31

intra thora findings, but this patient progressed

2:34

and now has metastatic disease.

Report

Faculty

Elisa Franquet Elia, MD

Assistant Professor of Radiology

UMass Chan Medical School

Lesson

Introduction to PET/CT Imaging

Lesson

FDG Use in PET/CT

Lesson

FDG: Common Pitfalls and Benign Lesions

Lesson

FDG Use in Hematologic Malignancies

Lesson

FDG Use in Lung Cancer

Lesson

FDG Use in Head & Neck Cancer

Lesson

FDG Use in Breast Cancer

Lesson

FDG Use in Immunotherapy

Lesson

DOTATATE Use in PET/CT

Lesson

DOTATATE and FDG Use in Neuroendocrine Tumors

Lesson

PSMA Use in PET/CT

Lesson

PSMA Use in Prostate Cancer

FDG Case: Lung Cancer Delineation