Unilateral nasal discharge

Question 1

When forming differential list for unilateral nasal discharge what 2 questions should we ask ourselves

Answer 1

Which structures may be involved?
What type of discharge is present therefore disease processes most likely?

Question 2

List the more common differentials for young horses with nasal discharge

Answer 2

primary infections and congenital problems more common

Question 3

List the more common differentials for older horses with nasal discharge

Answer 3

neoplasia, ethmoid haematoma and dental disease more common

Question 4

what teeth are in contact with the sinus

Answer 4

last 3-4 cheek teeth

Question 5

what can dental disease lead to

Answer 5

secondary sinusitis

Question 6

What is a sensible diagnostic approach for unilateral nasal discharge?

Answer 6

Watch horse eating for signs of pain or quidding
Palpate dental arcades externally for pain or abnormalities
Oral examination
Radiography
CT (gold standard)

Question 7

List 2 neoplasia that can cause unilateral nasal discharge

Answer 7

Squamous cell carcinoma in the sinuses
Melanoma in the guttural pouch