Pathology of Brain Tumours Flashcards Preview

Neurology > Pathology of Brain Tumours > Flashcards

Flashcards in Pathology of Brain Tumours Deck (7)
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1

What is cerebral perfusion pressure?

Mean arterial pressure - intracranial pressure

2

What are the causes of raised ICP?

Inflammation (meningitis, encephalitis, abscess)
Vascular (haemorrhage, swelling)
Tumours
Hydrocephalus

3

What are the effects of intracranial space occupying lesions?

Amount of tissue increases
Raises ICP
Herniation between spaces

4

What pathology can explain the Glasgow coma scale?

Squeeze on cortex and brainstem

5

What pathology can explain pupillary dilatation?

Squeeze and stretch on cranial nerve 3

6

What pathology explains localising signs?

Squeeze on decussation of corticospinal tracts and posterior columns

7

What is ischaemic penumbra?

Tumours squeeze tissue and cause local ischaemia