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Flashcards in Liver Deck (23):
1

What is U/S best at determining?

Focal vs. diffuse disease

2

When is ultrasound preferred?

In patients with large accumulation of peritoneal fluid or those patients with larger fat stores, i.e. cachexia or young patients

3

When are radiographs preferred?

In patients with a lot of GI tract gas, food in the GI tract, or peritoneal gas

4

T/F: Often the results of the radiographs and ultrasound are non-specific

TRUE

5

If disease is suspected and no radiographic or ultrasonographic changes found, then what?

Usually an ultrasonographic guided biopsy is indicated

6

What is the largest organ within the cat and dog?

Liver

7

T/F: Liver lobes are usually not visible in the dog and cat

TRUE

*Exception: the lobe that points caudoventrally on the lateral projection (L lateral in dog, R lateral in cat)

8

T/F: Individual liver lobes cannot be seen ultrasonographically

FALSE--they can be seen

9

What does the cranial margin of the liver silhouette with?

Diaphragm

10

The R and L margin of the liver blend in with the abdominal body wall unless there is ___ present

Fat

11

Which margin of the liver is often delineated due to the falciform fat?

Ventral margin

12

What aspect is always difficult to see? Why?

Caudal aspect--due to summation, silhouetting, and superimposition of the adjacent organs

13

What does the uniform soft tissue caudal to lungs extend to on the lateral view?

Costal arch

14

What is the gastric axis?

Line drawn through the fundus to the pylorus

15

What should the gastric axis be parallel/perpendicular to?

Should be parallel with the ribs and perpendicular to the spine

16

On ventrodorsal view the gastric axis is located over the ____ thoracic vertebrae

10th-12th

17

Is there something wrong with this radiograph?

Q image thumb

Nope! The gastric axis is within the reference lines

18

What might be seen on a radiograph of an enlarged liver?

  • May displace gastric axis caudally
  • May extend past costal arch
  • Pyloris may move medially on VD
  • Inc. soft tissue opacity cranially

19

What might be seen on a radiography of a small liver?

  • Gastric axis is cranially displaced
  • Reduced soft tissue opacity cranial abdomen

20

T/F: Liver may appear enlarged if lungs are over-inflated due to dyspnea and pleural effusion

TRUE

21

T/F: Liver may appear small in diaphragmatic hernias or deep-chested dogs

TRUE

22

Is it possible for the spleen to slide between the liver and stomach?

YES

23