Brain tumours Flashcards
what should you request in a kid with headache, vomiting, walking on tiptoes
CT
what types of astrocytoma are truly benign
pliocytic, pleomorphic, xanthoastrocytoma
names of malignant astrocytomas (grades 3 and 4)
grade 3 - anapaestic astrocytoma
grade 4 - glioblastoma multiforme
what do low grade astrocytomas present with
seizures
good or bad prognosis if MGMT methylated tumour
good, live longer
treatment of malignant astrocytomas
surgery and radiotx and temozolamide
tumour that has a grey pink cut surface and involves frontal lobes
oligodendroglial tumours
how do oligodendroglial tumours usually present
seizures
oligodendroglial tumours tx
chemo
procarbazine, lomustine, vincristine
what do meningiomas arise from?
arachnoid ‘cap’ cells
there is a slight assoc between meningiomas and ?? cancer
breast
What should be done before tumour resection in meningiomas?
pre op embolisation because they are usually quite vascular
meningiomas - good or bad prognosis?
not bad, 5 yr survival 90%
acoustic neuromas (aka vestibular schwannoma) are ascot with ??, especially if ??
NF II, especially if bilateral
most common CNS germ cell tumour
germinoma
they are radiosensitive