SA neuro IM diseases, spinal cord, intracranial Flashcards
what are the three major variants of MUE
GME, Necrotizing encephalomyelitis (NME, NLE) and EME
what is the most common dog type, and age associated with GME
female, toy breeds around 4.
what are the dog types, and major things associated with NME
pugs. rapidly progressive, forebrain signs, 2.5 y/o (seizures)
what tissue is NME in?
grey matter and meninges
what tissue is GME in?
white matter of the brain. multifocal
NLE necrotizing leukoencephalitis what dogs?
chihuahua and yorkies
EME eosinophilic meningoencephalitis. which dogs?
rare. middle aged large breeds. causes any signs. they do better clinically.
how does cat MUE compare to dog MUE
cats is more uncommon, cats respond well to steroids
what is the most common cause of cranial neuropathies
idiopathic etiology. none are life threatening. most are self limiting.
signs of trigeminal neuropathy
cant close mouth, one half of head muscles are caved in
eitologies for unilateral trigeminal neuropathies
nerve sheath tumor, meningioma, lymphoma
no menace, no palpebral, bilateral facial paralysis, lip droop.. eitologies?
most common: idiopathic facial nerve paralysis. otitis media/interna
peripheral vestibular lesion vs central vestibular lesions. how to differentiate.
peripheral will have normal postural reactions and may include only CN VII
central vestibular will have postural reactions on ipsilateral to the lesion. and could include CN V-XII.
dog presents with fever, poorly localized pain when palpating spine. what are three ddx
meningitis, polymyositis, polyarthritis.
SRMA: signallment
B breeds. fever, young large breeds.
acute vs chronic form of SRMA
acute: lethargy, fever, normal neuro exam.
chronic: waxed and waned for months. relapsing hyperpathia.
which fibers in the spinal cord are most susceptible to injury? least?
most: large myelinated. proprioception is first to go
least: small, central fibers. nociception is last to go
difference between grade 3 and grade 4 severity
3: nonambulatory, can move legs some if supported but cant walk.
4: completely paraplegic but has intact deep pain.
if presenting schiff sherington posture, where is the lesion likely located?
T3-L3 lesion including border cells. when supported, can use thoracic limbs normally, but stiff when in lateral recumbancy
chondrodystrophic dogs, progressive, painful, common in T3-L3. good to excellent prog with surgery
IVDE
IVDP: breeds, presentation, treatment?
larger, older dogs. chronic and progressive but minimally painful. MRI is helpful. medical management or sx
AANPE. presentation, diagnosis, treatment
nonprogressive after 48 hr, my have hyperalgesia, may occur during exercise. MRI is best to see liquid and contusion. SC
difference between AANPE and HNPE? HNPE physiology, history
compressive lesion where AANPE is not, seagull shaped material. usually nonpainful, usually cervical myelopathy. (example shows dog with proprioceptive deficit in thoracic limb) could also present tetraplegic.
miniature schauzer, peracute onset, nonprogressive after 24hr, nonpainful on presentation. tx: is SC and may not fully recover
FCE. with nociception present 70% recover.
