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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.
1 topic, 1 min.
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.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.4 topics, 11 min.
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.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.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, so here we go.
0:02
Another contrast-enhanced CT scan.
0:04
But let's not forget to look at the scout image.
0:06
'Cause sometimes a scout image can tell a thousand
0:09
other axial images just from the single image here.
0:12
So if we look at this scout image, we can already
0:15
tell that in the central aspect of the abdomen
0:17
we have multiple dilated loops of small bowel.
0:20
10 00:00:20,400 --> 00:00:22,205 Look at it, you can see that those nice valvulae conniventes,
0:22
or plicae circulares, should you call them
0:24
that. Those nice folds of the small bowel are
0:26
seen all the way across this dilated lumen.
0:29
It's in the central abdomen, and
0:31
you don't have much colonic gas.
0:33
Very, very little colonic gas.
0:34
So this appearance on the scout is in
0:36
keeping with a small bowel obstruction.
0:39
It's time to look at the CT scan and try
0:41
to determine if we can find the cause.
0:43
So coming down, this patient has
0:45
some tiny imperfections baseline.
0:47
You can see that the liver here
0:48
is a little nodular in appearance.
0:51
There's, um, hypertrophy of
0:52
the left lobe and the caudate.
0:54
So this is a patient with underlying cirrhosis.
0:56
We can even see a number of
0:58
esophageal varices here in the upper.
1:01
Aspect of the abdomen going into, uh, the thorax.
1:05
We have a large volume of ascites as well, so the
1:08
patient has, you know, some tiny imperfections that
1:10
are a little bit abnormal, but we're going to look for
1:12
the cause of this patient's bowel obstruction as well.
1:15
As we come down, we see all
1:17
of these loops of small bowel.
1:18
They're very dilated, fluid-filled.
1:21
We still have nice enhancement
1:22
of the walls of the small bowel.
1:26
Coming back down, we can see that the small bowel
1:29
suddenly herniates into a classic umbilical hernia.
1:33
And when the bowel goes into the hernia,
1:35
it's very dilated with fluid, and on
1:37
its way out is completely decompressed.
1:39
So this is an umbilical hernia causing
1:42
obstruction to the small bowel.
1:44
Notice.
1:45
The bowel within the hernia has nice enhancement,
1:47
so it does not look to be ischemic in any way.
1:51
But it is indeed causing the obstruction.
1:54
You can imagine that decompressing that hernia
1:57
would do the patient some service, and they
2:00
would feel much better as a result of a hernia
2:03
causing small bowel obstruction in a patient with
2:06
cirrhosis and underlying large volume ascites.
Interactive Transcript
0:00
Okay, so here we go.
0:02
Another contrast-enhanced CT scan.
0:04
But let's not forget to look at the scout image.
0:06
'Cause sometimes a scout image can tell a thousand
0:09
other axial images just from the single image here.
0:12
So if we look at this scout image, we can already
0:15
tell that in the central aspect of the abdomen
0:17
we have multiple dilated loops of small bowel.
0:20
10 00:00:20,400 --> 00:00:22,205 Look at it, you can see that those nice valvulae conniventes,
0:22
or plicae circulares, should you call them
0:24
that. Those nice folds of the small bowel are
0:26
seen all the way across this dilated lumen.
0:29
It's in the central abdomen, and
0:31
you don't have much colonic gas.
0:33
Very, very little colonic gas.
0:34
So this appearance on the scout is in
0:36
keeping with a small bowel obstruction.
0:39
It's time to look at the CT scan and try
0:41
to determine if we can find the cause.
0:43
So coming down, this patient has
0:45
some tiny imperfections baseline.
0:47
You can see that the liver here
0:48
is a little nodular in appearance.
0:51
There's, um, hypertrophy of
0:52
the left lobe and the caudate.
0:54
So this is a patient with underlying cirrhosis.
0:56
We can even see a number of
0:58
esophageal varices here in the upper.
1:01
Aspect of the abdomen going into, uh, the thorax.
1:05
We have a large volume of ascites as well, so the
1:08
patient has, you know, some tiny imperfections that
1:10
are a little bit abnormal, but we're going to look for
1:12
the cause of this patient's bowel obstruction as well.
1:15
As we come down, we see all
1:17
of these loops of small bowel.
1:18
They're very dilated, fluid-filled.
1:21
We still have nice enhancement
1:22
of the walls of the small bowel.
1:26
Coming back down, we can see that the small bowel
1:29
suddenly herniates into a classic umbilical hernia.
1:33
And when the bowel goes into the hernia,
1:35
it's very dilated with fluid, and on
1:37
its way out is completely decompressed.
1:39
So this is an umbilical hernia causing
1:42
obstruction to the small bowel.
1:44
Notice.
1:45
The bowel within the hernia has nice enhancement,
1:47
so it does not look to be ischemic in any way.
1:51
But it is indeed causing the obstruction.
1:54
You can imagine that decompressing that hernia
1:57
would do the patient some service, and they
2:00
would feel much better as a result of a hernia
2:03
causing small bowel obstruction in a patient with
2:06
cirrhosis and underlying large volume ascites.
Report
Faculty
Laura L Avery, MD
Assistant Professor of Emergency Radiology Harvard Medical School
Massachusetts General Hosptial
Tags
Small Bowel
Gastrointestinal (GI)
Emergency
CT
Body
Acquired/Developmental
Abdominal Wall
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