Imaging of the intestinal tract and peritoneum

Question 1

Does fat increase or decrease serosal detail?

Answer 1

Increase

Question 2

Where does free gas in the abdomen usually accumulate?

Answer 2

Caudal to liver

Around kidneys

Question 3

Which layer of the intestines is the thickest?

Answer 3

Mucosa

Question 4

What is suggestive of an obstructive intestinal pattern?

Answer 4

Two different sizes of intestine

Question 5

Where will IBD lesions localise?

Answer 5

Mucosa

Question 6

Where will intestinal lymphoma arise?

Answer 6

Muscularis

Question 7

Normal radiographic size of canine intestinal loops

Answer 7

Less than 2x width of rib

Less than 1.6x the height of the vertebral body of L5

Question 8

Normal radiographic size of feline intestinal loops

Answer 8

Less than 12 mm

Less than 2x the height of the endplate of L2

Question 9

Normal radiographic size of canine colon

Answer 9

Less than the lenght of the vertebral body of L7

Question 10

Normal radiographic size of feline colon

Answer 10

Less than 2.2x diameter of the normal intestine

Less than 2.8x length of cranial endplate

Less than 1.3x length of the vertebral body of L5

Question 11

Constipation

Answer 11

Infrequent and reversible faecal retention

Question 12

Obstipation

Answer 12

Permanent but reversible loss of colonic function

Question 13

Megacolon

Answer 13

Permanent and irreversible colonic distention

Question 14

Constipation vs megacolon in cats

Answer 14

Colon/L5 length ratio over 1.5