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Hydrocephalus is an abnormal accumulation of cerebrospinal fluid (fluid bathing the brain and spinal cord) within the fluid filled cavities called ventricles located deep within the brain. Normally CSF flows unimpeded along the pathways of the ventricular system to be reabsorbed into the superficial large veins on the superior surface of the brain.
There is a state of equilibrium with production equalling absorption.
Blockage along the ventricular pathways or failure of absorption of CSF is the cause of hydrocephalus. This can be due to congenital blockages (stenoses), tumours or scarring.
Bleeding within the ventricular system and subarachnoid space, brain infection like meningitis and trauma may lead to failure of reabsorption.
Hydrocephalus is more common in children. Symptoms include:
In adults symptoms of hydrocephalus may include:
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