pathology of intra-cranial tumours

Question 1

SOL- space occupying lesion

Answer 1

haemorrhage, tumour, abscess

Question 2

effects of the SOL

Answer 2

amount of tissue increases which raises intra-cranial pressure so brain shifts between intracranial spaces

Question 3

squeezes on cortex and brainstem

Answer 3

morning headache and sickness

Question 4

squeezes on optic nerve

Answer 4

causes papilloedema

Question 5

what happens as pressure increases

Answer 5

papillary dilation- cranial nerve 3
GCS falls
brainstem death

Question 6

where are tumours usually in adults

Answer 6

majority above tentorium

Question 7

where are tumours usually in children

Answer 7

below tentoirum

Question 8

where do meningiomas form from

Answer 8

arachnocytes which make up the covering of the brain
bengin and don’t metastasise but can invade the skull
slow-growing

Question 9

acoustic neuroma

Answer 9

schwannoma effects 8th cranial nerve.
occurs at angle between pons and cerebellum
unilateral deafness
benign lesion but difficult to remove

Question 10

pituitary adenoma

Answer 10

secretes pituitary hormones
grows on optic chiasma leading to vision problems