Herniations Flashcards
loss of consciousness then regain with declining status
extradural
lens shaped on mri
extra dural
other than the frontal lobe which lobe has a role in emotion
temporal
main signs of anterior cord syndrome
paralysis and loss of pain and temp below level of injury with preserved proprioception and vibration
main signs of central cord syndrome
acute extension injury bilateral UL weakness > lower limb weakness capelike spinothalamic loss dc preservation
main sign of subfalcine herniation
weakness in lower extremities
describe a central herniation of the brain stem
diencephalon and parts of the temporal lobe slip under the free edge of the tentorium
what causes a tonsillar hernaition
post fossa lesion or a-c malformation
midline cerebellar lesion
postural disturbance with preserved limb coordination
where is an extradural haemorrhage
dura and bone
which part of the frontal lobe has connections with the basal ganglia
prefrontal
signs of uncal herniation
pupillary dilation down and out eye contralateral hemiparesis pca compression causing homonomous hemianopia with macula sparing
headache and confusion
subdural
motivation
cingulate
what are the 3 main supratentorial herniations/
uncal subfalcine central
where is a subdural haemorrhage
dura and arachinoid
symptoms of tonsillar herniation
neck stiffness headache abn neck posture resp anomaly coma flaccid paralysis
bilateral cerebellar lesion
dysarthria bilateral incoordination staggering wide based gait
orbitofrontal
response to primitive stimuli (damage = disinhibition)
which herniation herniates through fractures
transcalvarian
what investigation do you NOT do if you suspect a herniation or raised icp ?
lp
what is the main rupturing vessel in an extradural
middle meningeal
unilateral cereberllar lesion
coordination disturbance intention tremor unsteady gait
where is a subarachinoid haemorrhage
arachinoid and pia
