Flashcards in Common Brain Lesions Deck (12):
Consequence: Kluver-Bucy syndrome (hyperorality, hypersexuality, disinhibited behavior)
Notes: Associated with HSV-1.
Consequence: Disinhibition and deficits in concentration, orientation, and judgement; may have reemergence of primitive reflexes
Right parietal lobe
Consequence: Spatial neglect syndrome (agnosia of the contralateral side of the world)
Reticular activating system (midbrain)
Consequence: Reduced levels of arousal and wakefulness (e.g. coma)
Mammillary bodies (bilateral)
Consequence: Wernicke-Korsakoff syndrome: confusion, ophthalmoplegia, ataxia; memory loss (anterograde and retrograde amnesia), confabulation, personality changes
Notes: Associated with thiamine (B1) deficiency and excessive EtOH use; can be precipitated by giving glucose without B1 to B1-deficient patient.
Consequence: May result in tremor at rest, chorea, or athetosis
Notes: Parkinson's disease.
Consequence: Intention tremor, limb ataxia, and loss of balance; damage to the cerebellum results in ipsilateral deficits; fall toward side of lesion
Notes: Cerebellar hemispheres are laterally located-affect lateral limbs.
Consequence: Truncal ataxia, dysarthria
Notes: Vermis is centrally located-affects central body.
Consequence: Contralateral hemiballismus
Consequence: Anterograde amnesia-inability to make new memories
Paramedian pontine reticular formation (PPRF)
Consequence: Eyes look away from side of lesion