BRAIN - Infectious

Question 1

DDx parasitic meningoencephalitis (7)​

Answer 1

Dirofilaria​
Baylisascaris​
Cuterebra​
Taenia​
Ancylostoma​
Toxacaris​
Angiostronglylus​

Question 2

In dogs, which areas are affected by TBE?​

Answer 2

Hippocampus​
Basal nuclei​
Thalamus​
Brainstem​
Ventral gray horn of spinal cord​

HyperT2w, HyperT2-Flair, hypoT1w​

Absence of CE, restricted diffusion, mass effect, peripheral edema​

Question 3

What is the predilection for Neosporosis lesions in puppies? Young adult?

Answer 3

In puppies, there is a predilection for lesions to predominate in the lumbosacral nerve roots. This causes denervation of the pelvic limb muscles which atrophy and in the growing dog this results in immobile limbs (contractures).
In young adults there is a predilection for this disease to develop in the cerebellum.

Overall, this is a fatal disease that causes encephalitis, myelitis, radiculoneuritis and myositis.

Question 4

What are the modes of transmission of Neospora?

Answer 4

Transmission is vertical in utero (transplacental) and horizontal from dog (coyote, fox) to other dogs, ruminants and the horse.