Posterior Reversible Encephalopathy Syndrome (PRES)

Posterior Reversible Encephalopathy Syndrome (PRES) is a condition where the brain temporarily becomes swollen, mainly affecting the back parts of the brain. This swelling can cause symptoms like headaches, confusion, vision problems, seizures, and high blood pressure. It’s often linked to conditions such as severe hypertension, certain medications, or illnesses that affect blood vessels. The good news is that with prompt treatment—like lowering blood pressure and managing underlying causes—most people recover fully, and the brain swelling usually resolves without lasting damage.