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National Organization for Rare Disorders, Inc. - Benign
Intracranial Hypertension - Idiopathic Intracranial Hypertension
(Primary Intracranial Hypertension) - Secondary Intracranial
Hypertension Intracranial Hypertension (Pseudotumor cerebri) is
characterized by increased pressure inside the skull.
Intracranial means inside the skull and hypertension means high
fluid pressure. Basically, the pressure of the fluid that
surrounds the brain (cerebrospinal fluid or CSF) is too high.
Elevated CSF pressure produces severe headache and often visual
difficulties, which, if left untreated can result in loss of
vision or blindness. Pseudotumor Cerebri and Benign Intracranial
Hypertension are both former names for Intracranial Hypertension
(IH) which are now considered inaccurate. These names do not
adequately describe the disorder an