Brain Tumours Flashcards
What can cause hydrocephallus?
Blockage of CSF flow?
What is a grade I Astrocytic tumour?
Pilocytic, Pleomorphic xanthaoastrocytoma
Subependymal giant cell
What is a grade II Astrocytic tumour?
Low grade Astrocytoma
What is a grade III Astrocytic tumour?
Anaplastic astrocytoma
What is a grade IV Astrocytic tumour?
Glioblastoma multiforme
Where do Glial tumours arise from?
Astrocytes or oligodendrocytes
Describe Grade I Astrocytomas
Truly benign
Slow grading
Children/young adults
Surgery needed
Where do Grade I’s occur and how do they present?
Temporal, posterior frontal, anterior parietal
Seizures
Describe Grade II’s
Over 50's Focal deficit Short symptom duration Raised ICP Altered consciousness
How do you treat Grade II’s?
Surgery
radio/chemo
How do you treat the malignant astrocytomas?
Surgery - cytoreduction and reduce mass effect
Supramarginal resection if non-eloquent
Describe Oligodendroglial tumours I?
Frontal lobes
Seizure presentation
6-12 years and 25-45 years
What occurs with Oligogendroglial tumours II?
Calcification
Cysts
Peritumoral haemorrhage
What are treatment for Oligodendroglial tumours?
Procarbazine Lomustine Vincristine Surgery + chemo RadioT reduces seizures
What cells are involved in meningiomas?
Arachnoid cap cells