Lecture 26: Imaging of the Acute Canine Abdomen

Question 1

Ultrasound of SI- what wrong, what likely cause

Answer 1

dilated small intestine loops, FB obstruction caudal casting hypoechoic shadow

Question 2

describe Pylorus and fundus in right lateral

Answer 2

fundus- gas (see)
Pylorus- fluid

Question 3

describe pylorus and fundus in left lateral

Answer 3

fundus- fluid
Pylorus- gas (see)

Question 4

describe pylorus and fundus in VD

Answer 4

fundus- fluid
Pylorus- gas (See)

Question 5

describe pylorus and fundus in DV

Answer 5

fundus- gas (see)
Pylorus- fluid

Question 6

what view is this

Answer 6

right lateral- gas in fundus

Question 7

what view is this

Answer 7

Left lateral- gas in pylorus

Question 8

what happens during GDV

Answer 8

pylorus rotates in left dorsal abdomen (usually in right ventral)

Question 9

what is most important view to dx GDV and what do you see

Answer 9

right lateral
See pylorus dorsal- should not see- should see in left lateral ventrally

Question 10

what wrong and what view

Answer 10

GD (not GDV- because pylorus not dorsal but gas filled)

Right lateral

Question 11

what wrong and what view

Answer 11

GDV- right lateral

Question 12

which of the following scenarios would you use contrast and not: luminal obstruction, motility, rupture, function

Answer 12

no contrast straight to sx: luminal obstruction, rupture

Contrast: motility, function

Question 13

what are the pros and cons of barium

Answer 13

pros: coats stomach well, tasty, and not absorbed by GIT

Cons: not sterile, generates granulomas

Question 14

what are the pros and cons of iodinated contrast

Answer 14

pros: sterile (IV or urinary bladder), safe in body cavities

Cons: inflammatory reactions in lungs, taste bad, allergic reactions (seizures, renal failure, pulmonary edema)

Question 15

what are some reasons to put contrast in upper GI

Answer 15

1. Mechanical obstruction
2. Neoplasia
3. Motility evaluation
4. Melena

Question 16

what would you see if you put contrast and there was complete obstruction

Answer 16

no contrast passes

Question 17

what would you see if you put contrast in and there was neoplasia in GI

Answer 17

filling defect

Question 18

what would you see if you put contrast in and there was melena

Answer 18

ulceration- filling defects
Contrast adheres

Question 19

what wrong and how do you know

Answer 19

luminal obstruction- filling defects with contrast

Intestines super distended before FB, normal after

Question 20

what wrong

Answer 20

Gas bubbles not in GIT, suspect GI perforation

Question 21

what special view can you do to evaluate gas outside GIT

Answer 21

horizontal beam in lateral

Question 22

what Wrong and what view is this

Answer 22

gas outside GIT (perforation)
Horizontal beam on left lateral

Question 23

8yr old GSD presents with acute onset distended abdomen- following rad taken, what wrong and what view

Answer 23

GDV
Right lateral

Question 24

6yr old lab retriever presents with distended abdomen and tachycardia. Following rad was taken what are two ddx

Answer 24

Pyometra or early pregnancy

Question 25

5yr Shetland sheepdog presents with 2 day history of vomiting and anorexia. Following radiograph was taken. What wrong

Answer 25

pancreatitis Stomach is pushed cranially, colon pushed dorsally Only thing between stomach and colon is pancreas

Question 26

5yr old golden retriever presents with abdominal pain, intermittent vomiting. Following rad was taken what is likely dx

Answer 26

duodenal FB (golf tee sign)

Question 27

10yr old mixed breed got into trash 2 days prior, ate pork ribs, now vomits after each meal. Following rad was taken what is likely dx

Answer 27

Fat within pelvic canal compressing colon to cause dilation

Question 28

3yr old mixed breed presents for vomiting past 24hrs. Following rad taken what is likely dx

Answer 28

duodenal FB obstruction

Question 29

5yr old Labrador retriever presents for vomiting for 48hrs, unable to keep food or water down, 2 other FB surgeries last year. Following rad was taken what is likely dx

Answer 29

stricture causing partial obstruction at previous sx site

Question 30

9yr old Doberman pincher presents with 3 day history of lethargy, anorexia and vomiting. The following radiograph was taken. What likely dx and what view is this

Answer 30

pyloric FB Left lateral