Colon, Rectum & Anus

Question 1

What affects colon healing?

Answer 1

High bacterial
Segmental blood supply
High colagenase production
Bulky solid contents

Question 2

What are indications of colotomy and what is the major contraindication?

Answer 2

Indications - intraluminal obstructions

ONLY do in viable bowel

Question 3

What is cranial rectal stenosis?

Answer 3

Stricture of rectal wall at pelvic inlet.

Affects all layers except serosa

Question 4

What are clinical signs of cranial rectal stenosis?

Answer 4

Constipation, tenesmus, haemotochezia.

Question 5

How do we treat rectal prolapse?

Answer 5

Reduction if viable.
Do colopexy
Remicaine cream to stop tenesmus

Question 6

When would you use an anal sacculectomy?

Answer 6

Anal sac disease

Question 7

What does an anal sacculectomy involve? What happens if you do not complete it properly?

Answer 7

Removal of entire sac and duct.
Do not damage N. rectalis caudalis (permanent incontinence).
Remove entire anal sac or you get chronic fistulation.

Question 8

Is rectal/anal neoplasia more common in males or females?

Answer 8

Males

But more malignant cases in females

Question 9

What is the most common rectal tumour in dogs?

Answer 9

Adenomatous polyps

But is benign! Yay!