Rad: Paraalimentary Flashcards
What entities are manipulated in an MRI?
Hydrogen protons.
What structures mark separation between the segments of the liver?
The hepatic veins.
In a T1-weighted MRI, what para-alimentary entities have high signal intensity? Low?
High: liver, fat
Low: spleen, CSF
In a T2-weighted MRI, what para-alimentary entities have high signal intensity? Low?
High: spleen, CSF (really high)
Low: liver
What are the 2 most common benign liver lesions?
(1) hemangioma
(2) cyst
On MRI, a metastasis resembles what para-alimentary entity?
Spleen.
On MRI, a cyst resembles what para-alimentary entity?
CSF.
What are risk factors for hepatic steatosis?
(1) obesity
(2) metabolic syndrome
(3) alcohol
What is NASH?
Non-alcoholic steatohepatitis, characterized by steatosis and inflammation.
What is genetic hemochromatosis?
An autosomal recessive disorder characterized by an increased iron absorption from the gut.
What might be suspected if the liver appears overly dark on T1 MRI?
Genetic hemochromatosis.
What might you suspect if the liver appears brighter on T1 MRI?
Hepatic steatosis.
What percentage of pancreatic cancers are resectable?
20%.
What are the 2 most common causes of jaundice?
(1) pancreatic cancer
(2) common bile duct stones
How is genetic hemochromatosis treated?
Phlebotomy.
