Brain disease (Yr 4)

Question 1

where can brain disease be localised to?

Answer 1

forebrain
brainstem
cerebellar
vestibular (central/peripheral)

Question 2

what are the clinical signs of a forebrain lesion?

Answer 2

disorientation/depression
contralateral blindness (normal PLR)
normal gait
ipsilateral circling
decreased contralateral postural response
seizures and behavioural change

Question 3

what are the clinical signs of a cerebellar lesion?

Answer 3

normal mentation
ipsilateral abnormal menace (normal PLR/vision)
vestibular signs (head tilt)
ataxia, hypermedia
intention tremors
decerebellate rigidity

Question 4

what are the clinical signs of a brainstem lesion?

Answer 4

depression, coma
cranial nerve deficits
vestibular signs
paresis of all/ipsilateral limbs
decerebrate rigidity
decreased postural response
respiratory/cardiac abnormalities