Common Lesions - Neuro

Question 1

Amygdala (bilateral); also what is it associated w/? (Kluver-Bucy syndrome)

Answer 1

hypersexuality, hyperorality, disinhibition

- HSV-1

Question 2

frontal lobe

Answer 2

disinhibition, deficits in concentration, orientation, and judgment; may have reemergence of primitive reflexes

Question 3

right parietal lobe

Answer 3

spatial hemineglect (contralateral side0

Question 4

reticular activating system (midbrain)

Answer 4

reduced arousal/wakefulness (e.g. coma)

Question 5

mamillary bodies (bilateral)

Answer 5

Wernicke-Korsakoff syndrome: ophthalmoplegia, confusion, ataxia, amnesia, confabulation

Question 6

basal ganglia

Answer 6

resting tremor, chorea, or athetosis (writihing)

Question 7

cerebellar hemisphere

Answer 7

intention tremor, limb ataxia (ipsilateral)

Question 8

cerebellar vermis

Answer 8

truncal ataxia, dysarthria

Question 9

subthalamic nucleus (STN)

Answer 9

contralateral hemiballismus

Question 10

How would a lacunar infarct affecting the subthalamic nucleus present clinically?

Answer 10

contralateral hemiballismus

Question 11

Hippocampus

Answer 11

anterograde amnesia

Question 12

Paramedian pontine reticular formation (PPRF)

Answer 12

eyes look away from side of lesion

Question 13

frontal eye fields

Answer 13

eyes look toward lesion