Synonyms: pseudotumour cerebri, benign intracranial hypertension
Raised intracranial pressure in the absence of a mass lesion or of hydrocephalus. It is often idiopathic. Idiopathic intracranial hypertension (IIH) appears to be due to impaired cerebrospinal fluid (CSF) absorption from the subarachnoid space across the arachnoid villi into the dural sinuses.
This is a companion discussion topic for the original article at https://patient.info/doctor/neurology/idiopathic-intracranial-hypertension-pro