Brain tumours are diverse group of primary CNS tumours and secondary neoplasm arising either from the scalp or from haematogenous spread from distant sites with few biologically aggressive tumours in both adult and paediatric age groups. Brain tumours have been classified based on their presumed cell of origin and degree of differentiation as determined by light microscopy and immunohistochemical studies with tumours distinctive tumour biology, treatment and prognosis. A retrospective study of all cases of intracranial tumours seen over a period of 10 years from
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