leptomeningitis

Leptomeningitis is an inflammation of the thin membranes called leptomeninges that cover the brain and spinal cord. It is usually caused by an infection, such as bacteria, viruses, or fungi. This condition can lead to symptoms like severe headache, neck stiffness, fever, and sensitivity to light. Because it affects the protective coverings of the central nervous system, leptomeningitis can be serious and require prompt medical treatment to prevent complications. Diagnosis often involves analyzing cerebrospinal fluid through a lumbar puncture, and treatment depends on the underlying cause.