Neuro

Question 1

Which one of the following includes cardinal signs of trigeminal neuritis?
A. Masseter muscle pain associated with chewing
B. Circling and head tilt toward the side of the lesion no other sings
C. Dysphasia, dysphoria and stridor
D. Inability to close the mouth
E. Paralyzed eyelid, ear, or lip on one or both sides of the face

Answer 1

D

Question 2

It is your first day on the job and your boss says there is a dog in room two with Horner’s syndrome.

Which four signs correctly constitute Horner’s syndrome?

A - Sweating ipsilaterally, Exopthalmia, Sunken nictitans, Mydriasis
B - Dry eye ipsilateral, Miosis, Sunken nictitans, Exopthalmos
C - Proptosed nictitans, Lip deviated ipsilaterally, Miosis, Anhidrosis
D - Protruding nictitans, Bupthalmia, Ptosis, Mydriasis
E - Miosis, Protruding nictitans, Enopthalmos, Ptosis

Answer 2

E

Remember “My 3rd Sunken Toe”
(Miosis, 3rd lid protrudes, Sunken eye, Ptosis) and “sweaty horses”.

A syndrome, not a disease per se. Can see 4 things with Horner’s, ALL associated with the eye:

1. MIOSIS (constricted pupil-lose sympathetic innervation)
2. PROTRUSION 3rd eyelid (nictitans)
3. ENOPHTHALMOS (sunken eye)
4. PTOSIS (drooped eyelid), +/- anisocoria

Follow this link to see a dog with Horner’s Syndrome OS (left side)

Anhidrosis (dry, decreased sweating ipsilaterally) occurs in all animals EXCEPT horse, but difficult to observe. PARADOXICALLY, Horses can show profuse sweating ipsilaterally due to loss of peripheral vasoconstriction.