CT Evaluation of Supratentorial Lesions

Background: Brain neoplasms may be classified by location of supratentorial, infratentorial and midline tumours. Of the supratentorial neoplasms meningiomas are the most frequent extra- axial neoplasms. CT has become the most important diagnostic procedure in evaluating patients suspected of harbouring an intracranial tumour. It is still considered the basic radiologic study since it gives specific information for the management of brain tumours and is minimally invasive. The purpose of this study was to assess the distribution, features,l ocalization and extent of supratentorial neoplasms. Methods: Fifty cases with symptoms of intracranial pathology and on CT found to have supratentorial tumours were studied. Results: The CT patterns of 50 supratentorial tumours were reviewed, out of which 30 cases i.e. 60% were found to be intra- axial and 21 i.e. 42% extra – axial tumours. GBM formed the major group of the intra axial tumours i.e. 18 % and meningioms formed the major extra- axial tumours forming 26 %. Conclusion: Tumours was done on 50 cases. The patients who were referred to department of Radio-diagnosis after suspected to have brain tumours by clinicians, are taken up for radiological evaluation and try to detect by CT scan. Thorough clinical history and clinical examination were done before CT examination.