Training Collections
Library Memberships
On-demand course library with video lectures, expert case reviews, and more
Fellowship Certificate™ Programs
Practice-focused training programs designed to help you gain experience in a specific subspecialty area.
Ultimate Learning Pass
Unlock access to our full Course Library and all self-paced Fellowships.
Continuing Medical Education (State CME)
Complete all of your state CME requirements in one convenient place.
Noon Conference (Free)
Get access to free live lectures, every week, from top radiologists.
Case of the Week (Free)
Get a free weekly case delivered right to your inbox.
Case Crunch: Rapid Case Review (Free)
Register for free live board reviews.
Dr. Resnick's MSK Conference
Learn directly from the MSK Master himself.
Lower Extremities MRI Conference
Musculoskeletal Imaging
PET Imaging
Pediatric Imaging
For Training Programs
Supplement your training program with case-based learning for residents, registrars, fellows, and more.
For Private Practices
Upskill in high growth, advanced imaging areas.
Compliance
NewTrack, fulfill, and report on all your radiologists' credentialing and licensing requirements.
Emergency Call Prep
Prepare trainees to be on call for the emergency department with this specialized training series.
Training Collections
Library Memberships
On-demand course library with video lectures, expert case reviews, and more
Fellowship Certificate™ Programs
Practice-focused training programs designed to help you gain experience in a specific subspecialty area.
Ultimate Learning Pass
Unlock access to our full Course Library and all self-paced Fellowships.
Continuing Medical Education (State CME)
Complete all of your state CME requirements in one convenient place.
Noon Conference (Free)
Get access to free live lectures, every week, from top radiologists.
Case of the Week (Free)
Get a free weekly case delivered right to your inbox.
Case Crunch: Rapid Case Review (Free)
Register for free live board reviews.
Dr. Resnick's MSK Conference
Learn directly from the MSK Master himself.
Lower Extremities MRI Conference
Musculoskeletal Imaging
PET Imaging
Pediatric Imaging
For Training Programs
Supplement your training program with case-based learning for residents, registrars, fellows, and more.
For Private Practices
Upskill in high growth, advanced imaging areas.
Compliance
NewTrack, fulfill, and report on all your radiologists' credentialing and licensing requirements.
Emergency Call Prep
Prepare trainees to be on call for the emergency department with this specialized training series.
Lesson
Introduction & Systematic Approach
3 topics, 15 min.
Lesson
Fibrotic Lung Disease
17 topics, 59 min.
Introduction to Fibrotic Lung Disease
3 m.Practical Approach to Pulmonary Fibrosis
6 m.Usual Interstitial Pneumonia (UIP): The 800lb Gorilla
3 m.UIP Diagnostic Criteria
2 m.Typical UIP and Probable UIP
6 m.Nonspecific Interstitial Pneumonia (NSIP)
10 m.Fibrotic Hypersensitivity Pneumonitis (fHP)
10 m.Case: Classic UIP (IPF) and Tracheobronchomalacia
4 m.Case: Fibrotic HP
2 m.Case: fHP pattern in CTD
4 m.Case: Asbestosis
4 m.Case: UIP with NSIP Elements in IPAF
4 m.Case: Classic UIP
2 m.Case: Indeterminate for UIP
3 m.Case: Combined NSIP and Organizing Pneumonia
2 m.Case: NSIP in IPAF
2 m.Case: NSIP in Systemic Sclerosis (SSc)
2 m.Lesson
Diffuse Nodular Lung Disease
15 topics, 35 min.
Introduction to Diffuse Nodular Lung Disease
4 m.Secondary Pulmonary Lobule Anatomy
2 m.Nodular Pattern Taxonomy
4 m.Random Nodules
5 m.Perilymphatic Nodules
6 m.Centrilobular Nodules
7 m.Case: Mild Perilymphatic Nodularity in Sarcoidosis
2 m.Case: Sarcoidosis - Perilymphatic Nodularity
2 m.Case: Fibrotic Sarcoidosis with Perilymphatic Nodularity
2 m.Case: Random Nodules in Histoplasmosis
2 m.Case: Adenocarcinoma
2 m.Case: Hypersensitivity Pneumonitis with Centrilobular Nodules
2 m.Case: Aspiration with Centrilobular Nodules
1 m.Case: Centrilobular Nodularity in Respiratory Bronchiolitis (RB)
2 m.Summary of Diffuse Nodular Lung Disease
1 m.Lesson
Diffuse Cystic Lung Disease
16 topics, 30 min.
Introduction to Diffuse Cystic Lung Disease
2 m.Diagnostic Approach to Cystic Lung Disease
6 m.Emphysema
2 m.Pulmonary Langerhans Cell Histiocytosis (PLCH)
5 m.Lymphangioleiomyomatosis (LAM)
2 m.Lymphocytic Interstitial Pneumonia (LIP)
4 m.Birt‑Hogg‑Dubé Syndrome
3 m.Case: LAM with Right Pleural Thickening
2 m.Case: LAM With Possible Chronic Pneumothorax
1 m.Case: LAM With Chylous Effusions
1 m.Case: LIP Non-Specific
2 m.Case: Classic LIP
2 m.Case: Birt‑Hogg‑Dubé Mild
1 m.Case: Birt‑Hogg‑Dubé Pneumothorax
1 m.Case: Classic LCH
2 m.Summary of Diffuse Cystic Lung Disease
3 m.Lesson
Interstitial Lung Abnormality (ILA)
5 topics, 8 min.
Lesson
Progressive Pulmonary Fibrosis (PPF)
3 topics, 3 min.
Lesson
Conclusion
1 topic,
0:00
So here's an example on the left of Paraseptal emphysema.
0:03
Here's example on the right of central lobular emphysema.
0:05
These are pretty obvious cases of emphysema,
0:08
but I'm just showing these to you to remind you that
0:11
remember, emphysema is so,
0:13
so much more common than diffuse cystic lung disease.
0:15
I don't know what order, but I'd say it's probably like a
0:18
hundred times more common, maybe even more than that.
0:21
And so sometimes you get emphysema,
0:22
which is a little atypical, or you get emphysema
0:25
with some sort of superimposed acute process on it
0:27
and it can look funny and mimic diffuse cystic lung disease.
0:31
So when you think about diffuse cystic lung disease
0:33
first, slow down.
0:34
Take a few steps back
0:35
and ask yourself, is this just a case of emphysema?
0:38
Like if, if the patient's coming in acutely,
0:40
make sure you look, try to look at some older CT scans
0:42
as well to make sure the patient just didn't have
0:44
underlying emphysema.
0:48
In these cases like this where it's confluent emphysema,
0:51
I've seen some people sometimes mistaking this
0:53
for diffuse cystic lung disease.
0:54
Buting. In these cases, actually more cut and dry.
0:56
Clearly this is just a case of confluent
0:59
advanced upper lung preponderant emphysema.
Emphysema
HIDEInteractive Transcript
0:00
So here's an example on the left of Paraseptal emphysema.
0:03
Here's example on the right of central lobular emphysema.
0:05
These are pretty obvious cases of emphysema,
0:08
but I'm just showing these to you to remind you that
0:11
remember, emphysema is so,
0:13
so much more common than diffuse cystic lung disease.
0:15
I don't know what order, but I'd say it's probably like a
0:18
hundred times more common, maybe even more than that.
0:21
And so sometimes you get emphysema,
0:22
which is a little atypical, or you get emphysema
0:25
with some sort of superimposed acute process on it
0:27
and it can look funny and mimic diffuse cystic lung disease.
0:31
So when you think about diffuse cystic lung disease
0:33
first, slow down.
0:34
Take a few steps back
0:35
and ask yourself, is this just a case of emphysema?
0:38
Like if, if the patient's coming in acutely,
0:40
make sure you look, try to look at some older CT scans
0:42
as well to make sure the patient just didn't have
0:44
underlying emphysema.
0:48
In these cases like this where it's confluent emphysema,
0:51
I've seen some people sometimes mistaking this
0:53
for diffuse cystic lung disease.
0:54
Buting. In these cases, actually more cut and dry.
0:56
Clearly this is just a case of confluent
0:59
advanced upper lung preponderant emphysema.
Report
Faculty
Jonathan H. Chung, MD
Professor of Radiology and Division Chief of Cardiothoracic Imaging
UCSD - University of California San Diego
Tags
Lungs
Chest CT
Chest
CT
Acquired/Developmental
© 2026 Medality. All Rights Reserved.
