Gastrointestinal Tract

Question 1

The normal stomach in the horse extends over how many intercostal spaces?

Answer 1

4-5

Question 2

As horses age what changes can occur of the liver?

Answer 2

The right lobes can atrphy and then eventually become not visible from the right side of the animal.

Question 3

What is producing this three layered appearance in the stomach?

Answer 3

Gas dorsally, fluid centrally and solid ingesta ventrally.

Question 4

This image was aquired from right 14th ICU space. What are some DDX?

Answer 4

Duodenal stricture, Duodenitis.

Question 5

What are som causes of a mechanical obstruction?

Answer 5

Ileal Impaction

Pasacaris equarum infestation

Stricture

Adhesion strangulation

Question 6

What are the ultrosonographic features of lawsonia intracelularis infection?

Answer 6

Thick walled ematous small intestine consistent with proliferative enteritis (Figure 24.27). Edematous thickening of the large intestine may also be present as a result of marked hypoalbuminemia.

Question 7

Inflamatory SI conditions typically result in which US findings?

Answer 7

Diffuse thickening, variable motility, varible echogenicity.

Question 8

Finding the medial colonic vasculature against the body wall on the right side of the abdomen can mean?

Answer 8

Right dorsal displacement of the colon

Question 9

Which region of the colon is commonly affected by prolonged NSAID administration?

Answer 9

Right dorsal colitis