What is an intracerebral aneurysm?
An intracerebral aneurysm is a small, thin walled out pouching or dilatation of one of the large blood vessels that supply the brain. Aneurysms pose a risk to health from the potential for rupture and subsequent bleeding into the substance of the brain and/or the fluid-filled spaces that surround the brain (the subarachnoid space). These so-called saccular or berry aneurysms occur at the bifurcation of the large blood vessels at the base of the brain.