Practical: Neuro diagnostic, imaging, pathology Flashcards
What is the location of the lesion in a dog with compulsive circling, delayed postural reactions and reduced menace response (intact PLRs)?
forebrain
bilateral
What are underlying causes for hydrocephalus?
congenital
in utero viral infections
acquired in older animals, consequence of obstruction of normal csf flow due to abscess, neoplasm, other
What is the lesion location in a dog with acute onset progressive asymmetrical painful weakness of the pelvic limbs, intact spinal reflexes and tone?
t3-l3 myelopathy
What is the most likely diagnosis in a daschund with t3-l3 myelopathy?
intervertebral disc extrusion
What is the typical patient and presentation with type 1 IVDD extrusion?
chondrodystrophic dog breeds (daschund, basset hound, beagle, corgi, french bulldog)
often young to middle aged dogs over 3yr
typically acute, progressive, painful
What is the typical patient signalment and presentation with type 2 IVDD protrusion?
middle aged or older dogs or cats
large non-chondrodystrophic breeds
chronic, slow progressive, non-painful
What are the common differentials for inflammatory/infectious and neoplasia in the left forebrain of a dog?
meningoencephalitis of unknown aetiology MUA
protozoal meningoencephalitis (neospora)
canince distemper virus encephalitis
primary neoplasia: glioma or meningioma
secondary neoplasia: lymphoma
What does high cellularity of mononuclear in CSF of a dog with left forebrain lesion indicate?
w/ presentation meningoencephalitis of unknown aetiology MUA is likely
What infectious diseases would you want to rule out to reach a diagnosis of MUA?
protozoal: neospora, toxoplasma
viral: canine distemper virus
bact: abscess/FB
fungal: tropical climates
What is the pathological finding in SRMA?
neutrophilic inflammation of meninges and arteries
How are clinical findings different in MUA and SRMA?
MUA: aysmmetrical and neuro abnormal
SRMA: neuro normal with cervical hyperaesthesia and pyrexia
both typically acute onest, progressive
