Brain Tumors

Question 1

Where would a primary brain tumor originate?

Answer 1

Nerve parenchyma

Question 2

What is the most common primary brain tumors in dogs and cats?

Answer 2

Meningiomas and glial cell tumors

Question 3

What are examples of intra-axial tumors?

Answer 3

Choroid plexus tumors and gliomas

Question 4

What is the most common intracranial tumor in a horse?

Answer 4

Pituitary adenoma

Question 5

What tumors seen in bovine can cause cerebellar syndrome?

Answer 5

Lymphosarcoma and medulloblastoma

Question 6

If tumors affect the brain of food animals, what is the most common route of development?

Answer 6

Extraneural tumors invading neural parenchyma

Question 7

In horses, what causes a cholesterinic granuloma?

Answer 7

Chronic hemorrhage causing deposits of RBCs and cholesterol

Question 8

Where do cholesterinic granulomas most often form?

Answer 8

4th and lateral ventricles

Question 9

What is a mainstay for any brain tumor treatment?

Answer 9

Steroids

Question 10

Surgery is indicated for what location of brain tumors?

Answer 10

Extra-axial

Question 11

What post-op therapy should be used for brain tumors?

Answer 11

Radiation therapy (most preferred)

Question 12

What do meningiomas arise from?

Answer 12

Arachoid

Question 13

What is the most common brain tumor seen in dogs and cats?

Answer 13

Meningioma

Question 14

How is a meningioma described?

Answer 14

Primary, extra-axial

Question 15

What other structure is usually associated with meningiomas?

Answer 15

Cysts

Question 16

In which dog breeds are glial tumors (astrocytomas and oligodendrogliomas) most often seen?

Answer 16

Brachycephalic breeds (Boston terriers)

Question 17

How are glial tumors described?

Answer 17

Intra-axial, primary, supratentorial

Question 18

Which dog breed is significantly more likely to develop a choroid plexus tumor?

Answer 18

Golden retriever

Question 19

How is a choroid plexus tumor described?

Answer 19

Primary intra-axial

Question 20

Where are choroid plexus tumors most commonly found?

Answer 20

4th ventricle

Question 21

Of the secondary tumors, which is the most common to affect the brain?

Answer 21

Hemangiosarcoma followed by lymphosarcoma

Question 22

Which dog breed is overrepresented when it comes to central nervous system lymphoma?

Answer 22

Rottweilers