Kapitel 99 - Nasal planum, sinuses and nasal cavity

Question 1

The muscles associated with movement of the nose are innervated by:

Answer 1

Facialis nerve

Question 2

What treatment is recommended for intranasal tumours in dogs?

Answer 2

Radiation therapy

(Chemotherapy has some efficacy, cytoreductive surgery was not shown to improve survival in dogs
with intranasal neoplasia. Surgical resection not feasible.
Radiation therapy is recommended as the treatment of choice. Exenteration after radiation was
shown to have an effect in one study (but also more complications) while another study did not
show any additional effect.)

Question 3

What is the reported median survival time for dogs treated with the above therapy for intranasal
neoplasia?

Answer 3

8 to 19 months

Question 4

What is important when considering reconstruction using bilateral lip flaps after nasal planum
excision?

Answer 4

Maximum preservation of the lip flaps during dissection

Question 5

Which approach to the nasal cavity should be avoided in immature animals?

Answer 5

Ventral approach

Question 6

Which disease is on top of the differential diagnosis list if a cavitary mass lesion is seen in the
nasal cavity on MRI?

Answer 6

Fungal rhinitis