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A benign tumor of the eighth cranial nerve; more accurately referred to as a schwannoma, because it is composed of Schwann cells, which produce myelin.
Dialtion or ballooning of an artery wall as a result of injury, disease, or congential condition.
Arteriovenous malformation (AVM):
A collection of blood vessels with abnormal communication between the arteries and veins. It may be the result of injury, infection, or a congenital condition.
Cells that support the nerve cells (neurons) of the brain and spinal cord by providing nutrients and insulation.
A section of bone removed from the skull during craniotomy procedures.
A technique used to occlude a blood vessel. A variety of materials, including platinum coils and microscopic plastic particles, are injected into the vessel under fluoroscopy control to stop active bleeding or prevent bleeding.
Intracranial pressure (ICP):
The pressure within the skull exerted by the brain tissue, blood, and cerbrospinal fluid.
- A computerized method of locating a point in space or in tissue, using coordinates in three-dimensions. During sterotactic surgery, the precise location of a tumor or other tissue can be identified from outside the body. The tissue can then be targeted for destruction.
- The term originates from the Greek words stereo, meaning "three dimensional", and tactos, meaning "touched".
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