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HYDROCEPHALUS |
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communicating: |
compensatory (atrophy of brain parenchyma)papilloma of choroid plexus (over-secretion of CSF; very rare)sagittal sinus thrombosis intra-ventricular bleed congenital toxoplasmosis tuberculous meningitis 'normal-pressure hydrocephalus' [dilated ventricular system with normal intracranial pressure but with continuing brain atrophy] |
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non-communicating: |
intra-ventricular tumour (at region of 3rd and 4th ventricles)aqueductal stenosis Arnold-Chiari malformation Dandy-Walker syndrome external compression by other tumours or oedema |
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