G04.9

Clinical Causes: Viral infections such as herpes simplex virus, West Nile virus, or rabies Bacterial infections like Lyme disease or tuberculosis Autoimmune disorders where the body's immune system attacks nervous tissue Parasitic infections Reaction to certain medications or vaccines Other infectious or non-infectious causes influencing immune response

Key Symptoms: Fever and chills Headache and neck stiffness Altered mental status, confusion, or disorientation Seizures Weakness or paralysis in limbs Sensory disturbances such as numbness or tingling Difficulty speaking or understanding speech Visual disturbances or loss of vision Difficulty walking or loss of coordination Loss of bladder or bowel control

Diagnosis Path: Diagnosis of these conditions typically involves a combination of clinical evaluation, neurological examination, and various diagnostic tests. These may include blood tests to identify infectious agents, imaging studies such as MRI or CT scans to visualize inflammation, and cerebrospinal fluid (CSF) analysis obtained through a lumbar puncture. CSF testing can help determine the presence of infectious organisms and inflammation markers, aiding in establishing or ruling out specific causes. In some cases, additional tests like brain biopsy may be necessary if the diagnosis remains uncertain.

Treatment Protocols: Treatment strategies depend on the underlying cause of the inflammation. Antiviral, antibacterial, or antiparasitic medications are used if an infectious origin is identified. In cases of autoimmune-related inflammation, corticosteroids or other immune-suppressing medications may be administered to reduce inflammation. Supportive care includes managing symptoms such as seizures and neurological deficits through specific therapies and rehabilitation. Early intervention and comprehensive management are crucial to minimize neurological damage and improve outcomes.