Paraneoplastic encephalitis

Paraneoplastic encephalitis is an immune response where the body's immune system mistakenly attacks the brain due to an underlying cancer elsewhere in the body. This happens because certain cancer cells produce proteins similar to those in the nervous system, causing the immune system to target both. Symptoms can include memory problems, personality changes, seizures, and movement issues. It often occurs before the cancer is diagnosed. Treatment typically involves addressing the cancer, along with medications to suppress the immune response, aiming to reduce brain inflammation and improve neurological function.