VETERINARY SURGERY

Question 1

A 3-year-old lop-eared rabbit presents with chronic otitis externa and head tilt. A CT scan confirms Grade III otitis media. You opt for lateral ear canal resection and bulla osteotomy with marsupialization (LECARBOM).

Which of the following is the most accurate statement regarding LECARBOM?

A. It requires myringotomy for diagnosis confirmation.
B. It results in otitis externa resolution in nearly all cases.
C. It is associated with permanent facial nerve paralysis in most rabbits.

Answer 1

B. It results in otitis externa resolution in nearly all cases

Question 2

Which bacterial species was most frequently isolated from middle ears in rabbits undergoing LECARBOM surgery?

A. Bordetella bronchiseptica
B. Pasteurella multocida
C. Pseudomonas aeruginosa

Answer 2

B. Pasteurella multocida

Question 3

What was the main reason for the poor efficacy of medical treatment in rabbit otitis media?

A. Excessive cerumen production
B. Inappropriate antimicrobial selection and poor drug penetration
C. Antibiotic resistance of Mycoplasma species

Answer 3

B. Inappropriate antimicrobial selection and poor drug penetration

Question 4

In the study, which factor was not significantly associated with surgical outcome after LECARBOM?

A. CT grade of otitis media
B. Duration of head tilt
C. Both A and B

Answer 4

C. Both A and B

Question 5

Which of the following best explains the poor short-term survival in production-sized pigs treated surgically for uterine neoplasia?

A. Higher rate of postoperative infection
B. More advanced disease at diagnosis
C. Lack of access to general anesthesia

Answer 5

B. More advanced disease at diagnosis

Question 6

What is the most commonly diagnosed uterine tumor in production-sized pigs based on the study?

A. Adenocarcinoma
B. Leiomyoma
C. Fibroma

Answer 6

B. Leiomyoma

Question 7

Which preoperative factor was significantly associated with short-term mortality?

A. Preoperative anemia
B. Advanced age
C. Breed (e.g., Hampshire)

Answer 7

A. Preoperative anemia

Question 8

Compared to pot-bellied pigs, production pigs had:

A. Lower tumor recurrence rates
B. Better surgical recovery
C. Lower short-term survival rates

Answer 8

C. Lower short-term survival rates

Question 9

What histological findings were significantly more severe at the CI-CSH implantation site compared to controls?

A. Fibrosis and necrosis
B. Hemorrhage and ulceration
C. Hematoma and inflammation

Answer 9

A. Fibrosis and necrosis ✅

Question 10

What was the peak plasma platinum concentration timepoint after CI-CSH bead implantation?

A. 2 hours
B. 12 hours
C. 24 hours

Answer 10

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