pathology of intracranial tumours

Question 1

key concept in intracranial tumours is a raised

Answer 1

ICP

Question 2

causes of raised ICP

Answer 2

haemorrhage

tumour

abscess

oedema post trauma

Question 3

SOL

Answer 3

space occupuing lesion

Question 4

3 examples of a SOL

Answer 4

tumour

bleeding (haematoma)

abscess

Question 5

effects of a SOL

Answer 5

amount of tissue increases

raises ICP

causes herniation between the intracranial spaces

Question 6

uncal herniation

Answer 6

cerebrum moves over the edge of tentorium

Question 7

coning

Answer 7

cerebellum moves inferiorly into foramen magnum

Question 8

cerebellar tonsillar herniation is a major cause of

Answer 8

brain stem death

Question 9

herniation onto the optic nerve gives

Answer 9

palpilloedema

Question 10

as pressure increases what 3 things happen?

Answer 10

reduced GCS

pupillary dilatation

brain stem death

Question 11

what tests would you do for coma without focal signs or meningism?

Answer 11

toxicology (alcohol)

blood sugar and electrolytes

assess hepatic function and renal function

acid base measurements

BP

Question 12

metastatic spread of intracranial tumours is to what sites?

Answer 12

breast

lung

kidney

colon

Question 13

adenoma is a tumour of the

Answer 13

pituitary gland

Question 14

glioma or astrocytoma is a tumour of

Answer 14

glial cells

Question 15

neurofibroma or a schawnnoma is a tumour of

Answer 15

nerve sheath cell

Question 16

astrocytomas are low grade and grow very

Answer 16

slowly

Question 17

giloblastomas are malignant astrocytes that grow very

Answer 17

quickly

Question 18

meningioma develops from what cells that make up the brain covering?

Answer 18

arachnocytes

Question 19

meningioma is a …….. tumour

does not metastasise!

Answer 19

benign / slow growing

Question 20

what is an acoustic neuroma?

Answer 20

shwannoma of 8th CN

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