Brain Metastases

Brain metastases account for approximately a third of all intracranial tumours and are the most common intracranial neoplasm. They characteristically occur at the corticomedullary junction of the brain and have surrounding oedema that typically exceeds the tumour┬ávolume. ┬áMultiple lesions are present in approximately two-thirds of cases and should be searched for with administration of intravenous […]


Most common site is the Circle of Willis. arrows – arteries ,arrow heads – aneurysms Aneurysm site in the Circle of Willis include Anterior Circulation (90%) – Anterior communicating artery aneurysm , Posterior communicating artery aneurysm. Posterior circulation (10%) : Basilar artery bifurcation. PICA – Posterior Inferior Cerebellar artery. Detection – Catheter , CT OR […]