Peritumoural oedema in meningiomas. A radiological and histological correlation

One hundred and six patients with intracranial meningiomas were evaluated retrospectively, and the degree of peritumoural oedema as noticed on CT, was correlated with the histological features and site and size of the tumour. 89 of the tumours which were 4.5 cms or more and all angioblastic and haemangiopericytic subtypes were associated with significant peritumoural oedema.