Neuro Disease Notes Flashcards
Disinhibition and defcits in concentration,
orientation, judgment; may have reemergence
of primitive refexes.
Frontal lobe lesion
Eyes look toward lesion.
Frontal eye field lesion
Eyes look away from side of lesion
Paramedian pontine reticular formation lesion
Internuclear ophthalmoplegia (impaired
adduction of ipsilateral eye; nystagmus of
contralateral eye with abduction).
Medial longitudinal fasciculus lesion
Commonly seen in MS
Agraphia, acalculia, finger agnosia, left-right
disorientation.
Grestmann syndrome
Dominant parietal cortex lesion
Agnosia of the contralateral side of the world.
Hemispatial neglect syndrome
Nondominant parietal cortex
Anterograde amnesia—inability to make new
memories.
Hippocampus bilateral lesion
May result in tremor at rest, chorea, athetosis.
Basal ganglia lesion
parkinsons, huntingtons
Contralateral hemiballismus
Subthalamic nucleus
Confusion, Ataxia, Nystagmus, Ophthalmoplegia, memory loss (anterograde and retrograde amnesia), confabulation, personality changes
Wernicke Korsakoff syndrome
Mamillary bodies bilaterally
disinhibited behavior (eg, hyperphagia, hypersexuality, hyperorality)
Kluver Bucy syndrome
Amygdala bilaterally
(hsv-1 encephalitis)
paralysis of conjugate vertical gaze (rostral interstitial nucleus also involved).
Parinaud syndrome
Supperior colliculus lesion
(stroke, hydrocephalus pinealoma)
Reduced levels of arousal and wakefulness
eg, coma
Reticular activating system (midbrain)
Intention tremor, limb ataxia, loss of balance;
damage to cerebellum p ipsilateral defcits;
fall toward side of lesion
Cerebellar hemisphere
Truncal ataxia, dysarthria.
Cerebellar vermis
after an ischemic stroke when will an MRI and a CT show changes
diffusion weighted MRI: 3-30 minutes
CT: 6-24hours
Epidural hematoma is commonly from what artery injury?
What artery is that a branch of?
What other pathology is the person at risk for?
Middle meningial off of the maxillary artery (break at the pterion)
At risk for transptentorial herniation and CN III palsy
