Cerebral aneurysm: A localized widening of a blood vessel within the brain. An aneurysm is a localized widening (dilatation) of an artery or vein within the brain. At the area of an aneurysm, there is typically a bulge and the wall is weakened and may rupture. The word “aneurysm” comes from the Greek “aneurysma” meaning “a widening.”
See: Berry aneurysm.
Medically reviewed by Martin Zipser, MD; Board Certified: Surgery
- Cerebral arterial gas embolism (CAGE)
Cerebral arterial gas embolism (CAGE): Gas bubbles traveling and lodging (embolizing) in the arteries that supply the brain with blood (and oxygen). Gas emboli in the brain can lead to a stroke-like condition with disorientation, difficulty walking and talking, coma, and death. For example, even a single breath of helium can cause CAGE.
- Cerebral calcification, nonarteriosclerotic
Cerebral calcification, nonarteriosclerotic: This syndrome described in 1930 by T. Fahr is a genetic (inherited) neurological disorder characterized by abnormal deposits of calcium in certain of areas of the brain (including the basal ganglia and the cerebral cortex). Symptoms may include motor function deterioration, dementia, mental retardation, spastic paralysis, dysarthria (poorly articulated speech), spasticity (stiffness […]
- Cerebral cortex
Cerebral cortex: A thin mantle of gray matter about the size of a formal dinner napkin covering the surface of each cerebral hemisphere. The cerebral cortex is crumpled and folded, forming numerous convolutions (gyri) and crevices (sulci). It is made up of six layers of nerve cells and the nerve pathways that connect them. The […]
- Cerebral edema
Cerebral edema: Accumulation of excessive fluid in the substance of the brain. The brain is especially susceptible to injury from edema, because it is located within a confined space and cannot expand. Also known as brain edema, brain swelling, swelling of the brain, and wet brain.
- Cerebral fornix
Cerebral fornix: An arching fibrous band in the brain that connects the two lobes of the cerebrum. There are two such bands, each of which is an arched tract of nerves.