Brainstem lesions 1 and 2 Flashcards
alternating hyposglossal hemiglegia with dorsal extension
A12H + ML
syndrome of foville
A6H + destruction of
ML, crossed CBF (NA + Hypoglossal nucleus)
MLF
where in the brainstem is lesion when syndrome of foville
pons at the facial colliculus
alternating trigeminal hemiplegia with dorsal extension
A5H + ML + uncrossed CBF (contralateral 6, VII (Supranuclear facial palsy), NA, 12)
weber’s syndrome
A3H + uncrossed CBF + SN
location of weber’s syndrome
midbrain/dienchephalon at posterior commisure
wallenburg syndrome aka LMS, from destruction of what artery
PICA
wallenburg strucutres damaged
alternating hemianalgesia with destruction of IX and X
-dysphage, dysarthria
location of wallenburg strucutre damage
medulla at olive
CPA
alternating hemianalgesia with hearing loss
-can have facial nerve and bells palsy involved
location of CPA
upper medulla/lower pons
benedikts’s syndrome location
midbrain/dienceph at the posterior commisure
benedikts’ syndrome damage
CN III
ML
red nucleus: contralateral motor dysfunction like tremor, ataxia, choreiform
parinaud’s syndrome
lesion of superior colliculus
paralysis of upward gaze
pineal tumor or verix of great vein of galen
-lesion can destroy post commisure and mess up consencual light reflex
UNILATERAL LESION OF vpm AND vpl
contralateral hemianesthesia of the face and body
loss proprioception and tactile info from contralateral body
-loss of prop and tactile discrimination and taste from ipsilateral head
