Rapid fire Flashcards
pupil-involving third nerve palsy
posterior communicating artery aneurysm until proven otherwise
how to localize cause of Horner’s syndrome
using anhidrosis
tells if 1st, 2nd, or 3rd order neuron
1st order neuron- Horners
brainstem/spine
2nd order neuron- Horner’s
brachial plexus/lung apex
Pancoast Tumor
3rd order neuron- Horner’s
throat/jaw pain
Carotid dissection
painful Horner’s- what do to
consider carotid dissection
MRI, CT angio, anticoagulants.
worried about blood clots embolizing
where does bitemporal hemianopia localize?
optic chiasm
optic chiama impacted by what structure
pituitary
homonymous hemianopias localize to
optic tract
same side
Sudden onset w/ homonymous visual loss
likely occipital stroke
Parinaud syndrome
- Upgaze paresis
- Convergence retraction saccades
- Eyelid retraction
located in dorsal midbrain
midposition/large pupils
worry about metastasis or infarction
APD
worry about optic nerve
MS- associated optic neuritis
ovoid periventricular lesions consistent with inflammation/lesions
Swollen, pale optic nerve
elderly person
means restricted blood flow to the nerve
think about giant cell arteritis
extracranial vessel vasculitis
give steroids
Wernicke’s encephalopathy signs
- not all patients have history of alcohol use
- cerebellar pathways until proven otherwise
- gaze-evoked nystagmus
- usually w/ 6th nerve palsies and nystagmus
- risks for nutritional deficiencies
