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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.
Introduction
Introduction
1 topic, 1 min.
Right Upper Quadrant Pain
Right Upper Quadrant Pain
20 topics, 55 min.
Normal Anatomy and Basic Ultrasounds: Abdomen and Pelvis
8 m.Cholelithiasis
2 m.Case: Acute Cholecystitis on Ultrasound
2 m.Acute Cholecystitis on Ultrasound
3 m.Case: Acute Cholecystitis on CT
2 m.Acute Cholecystitis on CT
1 m.Case: Cholecystitis With Calcified Stones
3 m.Gallstones on CT
2 m.Case: Tensile Gallbladder Fundus Sign
2 m.Tensile Gallbladder Fundus Sign
2 m.Case: Gangrenous Cholecystitis
2 m.Gangrenous Cholecystitis
2 m.Case: Emphysematous Cholecystitis With Portal Venous Gas Air
2 m.Emphysematous Cholecystitis With Portal Venous Gas Air
4 m.Case: Emphysematous Cholecystitis With Perforation
5 m.Emphysematous Cholecystitis Summary
3 m.Case: Mirizzi Syndrome With Dilated Intrahepatic Bile Ducts
4 m.Mirizzi Syndrome
6 m.Case: Choledocholithiasis
5 m.Choledocholithiasis
4 m.Midline Pain
Midline Pain
10 topics, 24 min.
Case: Acute Gallstone Pancreatitis
2 m.Causes of Pancreatitis
4 m.Cases: Pancreatitis Without/With Necrosis
3 m.Revised Atlanta Classification
6 m.Case: Pancreatitis With SMV and Splenic Vein Thrombosis
3 m.Pancreatitis Complication: SMV and Splenic Vein Thrombosis
3 m.Case: Pancreatitis With Pseudoaneurysm of Splenic Artery
2 m.Pancreatitis Complication: Splenic Artery Pseudoaneurysm
2 m.Case: Duodenal Ulcer With Perforation
2 m.Types of Perforated Ulcers
2 m.Lower Quadrant Pain
Lower Quadrant Pain
4 topics, 11 min.
Left Lower Quadrant Pain
Left Lower Quadrant Pain
11 topics, 16 min.
Case: Classic Diverticulitis
2 m.Diverticulitis
2 m.Case: Diverticulitis With Free Air
2 m.Case: Diverticulitis, Perforated with Abscess
2 m.Diverticulitis: Perforated With Abscess Post Drainage
2 m.Case: Diverticulitis With Colovesical Fistula
2 m.Diverticulitis With Colovesical Fistula
1 m.Case: Diverticulitis With IMV Thrombosis
2 m.Diverticulitis With IMV Thrombosis
2 m.Case: Epiploic Appendagitis
2 m.Epiploic Appendagitis and Omental Infarction
3 m.Bowel Obstruction
Bowel Obstruction
26 topics, 1 hr.
Case: Umbilical Hernia
3 m.Obstructing Umbilical Hernias
3 m.Groin Hernias: Introduction
3 m.Case: Indirect Inguinal Hernia
2 m.Inguinal Hernias
2 m.Case: Femoral Hernia
2 m.Case: Obturator Hernia
2 m.Groin Hernias: Summary
3 m.Case: Simple Bowel Obstruction
2 m.Case: High Grade Bowel Obstruction
2 m.Case: Gallstone Ileus
3 m.Gallstone Ileus and Cholecytocolic Fistula
3 m.Case: Closed Loop Small Bowel Obstruction
3 m.Closed Loop Small Bowel Obstruction
5 m.Case: Large Bowel Colonic Obstruction
2 m.Large Bowel Colonic Obstruction
2 m.Case: Perforated Colon From Colon Cancer
3 m.Perforated Colon
4 m.Case: SMA Embolism With Bowel Ischemia
3 m.SMA Embolism
4 m.Case: Mesenteric Vein Thrombosis
3 m.Mesenteric Vein Thrombosis
2 m.Case: Cecal Volvulus
2 m.Cecal Volvulus
4 m.Case: Sigmoid Volvulus
3 m.Sigmoid Volvulus
3 m.Retroperitoneum
Retroperitoneum
15 topics, 46 min.
Retroperitoneum
3 m.Case: Ruptured Abdominal Aortic Aneurysm
2 m.Abdominal Aortic Aneurysm Rupture
4 m.Case: Bleeding Angiomyolipoma
3 m.Angiomyolipoma
2 m.Case: Psoas Hematoma
3 m.Retroperitoneal Bleeding
2 m.Case: Renal Stones
3 m.Enhancement Patterns of Kidneys
7 m.Case: Forniceal Rupture
4 m.Forniceal Rupture
2 m.Case: Pyelonephritis
3 m.Pyelonephritis
3 m.Case: Renal Infarcts
3 m.Renal Infarcts
9 m.0:00
Okay, here we have another, um,
0:02
abdominal CT scan with contrast.
0:05
As we come down, we can see that the
0:06
patient has a little pleural effusion
0:07
here, maybe not feeling the best today.
0:10
And as we come into the liver, you can see that in
0:12
the right lobe of the liver, we have little branching
0:14
areas of air within the liver that is very classic for
0:19
portal venous air within the periphery of the liver.
0:22
So already we know this patient is a little
0:23
sicker than the normal patient we're seeing,
0:25
and as we come down to the gallbladder, you
0:27
can see a large obstructing calcified stone
0:30
just wedged in there at the gallbladder neck.
0:32
But also this gallbladder, we see a nice rim
0:35
of air within the wall in that antidependent
0:38
or in that dependent portion of the wall,
0:40
and air-fluid within the lumen as well.
0:42
So this is a beautiful appearance
0:44
of emphysematous cholecystitis.
0:47
Um, there's air within the wall.
0:49
There's a lot of thickening and distension of that
0:51
gallbladder as well. As we're coming down the patient's
0:55
GI tract with that evidence of obstruction.
0:57
We're going to see some beautiful diverticulum
0:59
down here in the pelvis, but nothing
1:01
other than just the, um, impressive
1:05
emphysematous cholecystitis.
1:05
I'll show it to you on coronal more
1:07
just to show off than anything else.
1:09
That's just rim of air within the
1:12
gallbladder wall itself trapped there.
1:15
Can't even float upwards.
1:16
So the laws of air are— that they
1:19
should always be antidependent.
1:21
And here we have air within the liver as well.
1:25
So this is a beautiful image
1:26
of emphysematous cholecystitis.
Case: Emphysematous Cholecystitis With Portal Venous Gas Air
HIDEInteractive Transcript
0:00
Okay, here we have another, um,
0:02
abdominal CT scan with contrast.
0:05
As we come down, we can see that the
0:06
patient has a little pleural effusion
0:07
here, maybe not feeling the best today.
0:10
And as we come into the liver, you can see that in
0:12
the right lobe of the liver, we have little branching
0:14
areas of air within the liver that is very classic for
0:19
portal venous air within the periphery of the liver.
0:22
So already we know this patient is a little
0:23
sicker than the normal patient we're seeing,
0:25
and as we come down to the gallbladder, you
0:27
can see a large obstructing calcified stone
0:30
just wedged in there at the gallbladder neck.
0:32
But also this gallbladder, we see a nice rim
0:35
of air within the wall in that antidependent
0:38
or in that dependent portion of the wall,
0:40
and air-fluid within the lumen as well.
0:42
So this is a beautiful appearance
0:44
of emphysematous cholecystitis.
0:47
Um, there's air within the wall.
0:49
There's a lot of thickening and distension of that
0:51
gallbladder as well. As we're coming down the patient's
0:55
GI tract with that evidence of obstruction.
0:57
We're going to see some beautiful diverticulum
0:59
down here in the pelvis, but nothing
1:01
other than just the, um, impressive
1:05
emphysematous cholecystitis.
1:05
I'll show it to you on coronal more
1:07
just to show off than anything else.
1:09
That's just rim of air within the
1:12
gallbladder wall itself trapped there.
1:15
Can't even float upwards.
1:16
So the laws of air are— that they
1:19
should always be antidependent.
1:21
And here we have air within the liver as well.
1:25
So this is a beautiful image
1:26
of emphysematous cholecystitis.
Report
Faculty
Laura L Avery, MD
Assistant Professor of Emergency Radiology Harvard Medical School
Massachusetts General Hosptial
Tags
Other Biliary
Infectious
Gastrointestinal (GI)
Gallbladder
Emergency
CT
Body
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