Table 1.

Taxonomy of Intracranial Hypertension

Increased Blood Volume	Cerebral Arterial Hypervolemia	Autoregulated Active Vasodilation Dysregulated Passive Vasodilation
	Cerebral Venous Hypervolemia	Starling resistor outflow obstruction Venous sinus obstruction Very high extracranial venous pressure
Masses and Edema	Brain tissue edema  →oligemia	Vasogenic edema Cytotoxic edema
	Masses  →oligemia	Intracranial Neoplasia Hematoma
Increased CSF Volume	Hydrocephalus	Communicating Non-communicating