tumours of the CNS

Question 1

metastatic CNS tumours

Answer 1

very common
often multiple
can occur anywhere in the brain
can sometimes look like primary tumours on radiology

Question 2

do primary CNS tumours metastasise

Answer 2

tend to not metastasise
just grow larger instead
may seed CSF leading to drop metastases

Question 3

CNS metastatic cancers

Answer 3

most commonly identified neoplastic lesions in the brain
presence implies high stage tumour
usually haematogenous spread
can also less commonly be due to direct extension into or from neighbouring tissues or via CSF seeding

Question 4

presence of CNS metastasis implies

Answer 4

high stage tumour

Question 5

metastosis spreading to the CNSS via direct invasion

Answer 5

paranasal sinuses, base of skull, dura, eyes