Posterior reversible encephalopathy syndrome (PRES) presents with a mix of general and specific neurological symptoms, along with distinct neuroimaging signs showing swelling mainly in the back of the brain.
Although often linked to sudden high blood pressure, PRES can also occur in patients without hypertension, especially those with autoimmune diseases or exposure to toxic substances.
The underlying causes of PRES involve problems with blood flow regulation in the brain due to high blood pressure and harmful effects from both natural and external substances.