Brain tumours

Question 1

what should you request in a kid with headache, vomiting, walking on tiptoes

Answer 1

CT

Question 2

what types of astrocytoma are truly benign

Answer 2

pliocytic, pleomorphic, xanthoastrocytoma

Question 3

names of malignant astrocytomas (grades 3 and 4)

Answer 3

grade 3 - anapaestic astrocytoma

grade 4 - glioblastoma multiforme

Question 4

what do low grade astrocytomas present with

Answer 4

seizures

Question 5

good or bad prognosis if MGMT methylated tumour

Answer 5

good, live longer

Question 6

treatment of malignant astrocytomas

Answer 6

surgery and radiotx and temozolamide

Question 7

tumour that has a grey pink cut surface and involves frontal lobes

Answer 7

oligodendroglial tumours

Question 8

how do oligodendroglial tumours usually present

Answer 8

seizures

Question 9

oligodendroglial tumours tx

Answer 9

chemo

procarbazine, lomustine, vincristine

Question 10

what do meningiomas arise from?

Answer 10

arachnoid ‘cap’ cells

Question 11

there is a slight assoc between meningiomas and ?? cancer

Answer 11

breast

Question 12

What should be done before tumour resection in meningiomas?

Answer 12

pre op embolisation because they are usually quite vascular

Question 13

meningiomas - good or bad prognosis?

Answer 13

not bad, 5 yr survival 90%

Question 14

acoustic neuromas (aka vestibular schwannoma) are ascot with ??, especially if ??

Answer 14

NF II, especially if bilateral

Question 15

most common CNS germ cell tumour

Answer 15

germinoma

they are radiosensitive