Oral Tumors

Question 1

what does acanthomatous ameloblastoma arise from?

Answer 1

periodontal ligament

Question 2

what is prognosis of oral neoplasia dependent on?

Answer 2

highly dependent on histopathologic diagnosis

Question 3

what percentage of all oral tumors are oral malignant melanoma?

Answer 3

30-40%

Question 4

what does prognosis of oral malignant melanoma depend on?

Answer 4

tumor size and grade

Question 5

should you aspirate lymph nodes for oral malignant melanoma if they are small?

Answer 5

yes- both sides
nodal involvement carries a poorer prognosis

Question 6

what is surgery like of resectable oral malignant melanoma?

Answer 6

surgical excision with bone
follow up with radiation if margins incomplete
lymph node removal recommended

Question 7

does chemotherapy help with oral malignant melanoma?

Answer 7

no

Question 8

who does canine oral fibrosarcoma occur in?

Answer 8

medium to large breed dogs

Question 9

what is the treatment of choice for canine oral fibrosarcoma?

Answer 9

surgical excision with removal of bone

Question 10

what is high/low fibrosarcoma?

Answer 10

histologically low grade
biologically high grade

Question 11

when are canine oral squamous cell carcinomas more aggressive?

Answer 11

sublingual or tonsillar

Question 12

what is the most common canine lingual tumor?

Answer 12

squamous cell carcinoma

Question 13

how much of the rostral tongue of a dog can you remove?

Answer 13

40-60%

Question 14

where can feline oral squamous cell carcinoma affect?

Answer 14

any area of oral cavity

Question 15

what is recommended for treatment of feline oral squamous cell carcinoma?

Answer 15

palliative care

Question 16

what are the malignant canine oral tumors?

Answer 16

melanoma
squamous cell carcinoma
fibrosarcoma

Question 17

what is acanthomatous ameloblastoma like?

Answer 17

locally aggressive but does not spread
radiation sensitive

Question 18

what seems to increase risk of oral malignant melanoma?

Answer 18

heavily pigmented oral cavity

Question 19

what is treatment of oral malignant melanoma like?

Answer 19

for both primary tumor and metastatic disease

Question 20

mitotic count ________ have a better prognosis with oral malignant melanoma

Answer 20

<9

Question 21

what is essential for radiation for oral malignant melanoma?

Answer 21

CT

Question 22

what is radiation like with non-resectable oral malignant melanoma?

Answer 22

include lymph nodes
radiation response can be dramatic

Question 23

what can a melanoma vaccine do?

Answer 23

potentially slow the development of metastases in dogs with minimal residual disease

Question 24

what is survival of canine oral fibrosarcoma?

Answer 24

250-750 days
metastases develop late- 10-15% of dogs

Question 25

what is the prognosis of high/low fibrosarcoma?

Answer 25

very poor unless surgically resectable chemotherapy of no benefit

Question 26

what is the prognosis of canine lingual tumors?

Answer 26

guarded

Question 27

are most feline oral tumors benign or malignant?

Answer 27

malignant 5% benign

Question 28

what is feline oral squamous cell carcinoma often mistaken for?

Answer 28

dental disease/abscess