The provider decompresses the area of the brain below the temples by removing the part of the skull beneath the temporal muscle and opening the dura. This procedure is done when intracranial pressure increases for no obvious reason, a condition known as pseudotumor cerebri, also called idiopathic intracranial hypertension. Another indication for the service is a condition known as slit ventricle syndrome, a complication of shunt implantation for patients with excess cerebrospinal fluid, or CSF, buildup in the ventricles of the brain.
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