Pancreas divisum
and
Santorinicele


“Crenated” cyst
“Crenated cyst”
having a margin with rounded scallops.
On MR, which sequence to you use to examine
whether the kidneys have preserved corticomedullary differentiation?
T1
How do you differentiate
chronic inflammation (fibrosis)
from
active/acute inflammation
of Crohn’s disease?
What is the best sequence to examine the pancreas
If a tumor is very dark on T2 - very hypointense T2 signal intensity corresponds to post treatment changes
Very bad, active mets shoudl be T2 “gray”
If a tumor is very dark on T2 - very hypointense T2 signal intensity corresponds to post treatment changes
Very bad, active mets shoudl be T2 “gray”

Xanthogranulomatous cholecystitis (XGC)

Demographics of gallbladder carcinoma?
Female:Male = 3:1
There is also diffuse intrahepatic biliary dilatation commensurate with the degree of the CBD dilatation.
There is also diffuse intrahepatic biliary dilatation commensurate with the degree of the CBD dilatation.
What to say about CBD dilatation without a cause identified?
No intraluminal filling defect, mural thickening, or extrinsic mass lesion.
This appearance is presumably on the basis of an underlying benign ampullary stricture, which remains the diagnosis of exclusion.
Biliary manifestations of CF?
Innocuous
Innocuous
not harmful, safe, non-offensive, innocent
3 head of gastrocnemius muscle


Typical findings of fat or silicone
embolism syndrome
DDx for arterial enhancing focal liver lesions
wording
…, in combination of …, most strongly favor the diagnosis of …
…, in combination of …, most strongly favor the diagnosis of …
A Richter hernia is an abdominal hernia in which comprise 10% of strangulated hernias. These hernias progress more rapidly to gangrene than other strangulated hernias, and obstruction is less frequent.
Pathology
Only the antimesenteric wall of the bowel has herniated without compromising the entire lumen. This herniation is usually through a small defect in the abdominal wall. The most often entrapped part of bowel is the terminal ileum, however any part of the bowel can be involved.
A Richter hernia is an abdominal hernia in which comprise 10% of strangulated hernias. These hernias progress more rapidly to gangrene than other strangulated hernias, and obstruction is less frequent.
Pathology
Only the antimesenteric wall of the bowel has herniated without compromising the entire lumen. This herniation is usually through a small defect in the abdominal wall. The most often entrapped part of bowel is the terminal ileum, however any part of the bowel can be involved.
What to think about when presented with
CT AP ? appendicitis
but appendix is normal
but thickened small bowel loops
with fluid in the colon???
Infectious enteritis
affecting the small bowel
and dirarrhea!!!
If you can’t make out the liver parenchyma against the vessels – fatty liver!!!
Don’t just compare with the spleen!!!
If you can’t make out the liver parenchyma against the vessels – fatty liver!!!
Don’t just compare with the spleen!!!
Adrenal lesion 6 months of no growth
– adrenal adenoma!!!
Adrenal lesion 6 months of no growth
– adrenal adenoma!!!
Renal collecting system duplication
Renal duplication
Renal collecting system duplication
Renal duplication
Ischemic bowel – look for non-enhancement and pneumatosis!!
Ischemic bowel – look for non-enhancement and pneumatosis!!
Fibrofatty proliferation
vs
Submucosal fat deposition
Fibrofatty proliferation - lots of mesenteric fat proliferation; separate the diseased small bowel (often the TI) from other bowel loops
Submucosal fat deposition
“2.9 x 2.3 x 1.9 cm soft tissue density mass adherent to the posterior urinary bladder dome, and the diagnosis of exclusion is a primary bladder neoplasm. Urology consult is recommended. If this soft tissue mass is ultimately proven to be a bladder neoplasm, no evidence of intra-abdominal metastatic disease is demonstrated within the limitations of this unenhanced CT.”
“2.9 x 2.3 x 1.9 cm soft tissue density mass adherent to the posterior urinary bladder dome, and the diagnosis of exclusion is a primary bladder neoplasm. Urology consult is recommended. If this soft tissue mass is ultimately proven to be a bladder neoplasm, no evidence of intra-abdominal metastatic disease is demonstrated within the limitations of this unenhanced CT.”