Fig. 2From: Intracranial emergencies in neurosurgical oncology: pathophysiology and clinical managementNon-linear relationship between ICP and volume of the space-occupying lesion. An initial increase in volume results in a small increase in pressure because of intracranial compensation obtained by displacement of blood and CSF. Once intracranial compensation is exhausted, additional increases in intracranial volume result in a dramatic rise in ICPBack to article page