Scientists track brain lesions over years to unlock MS mysteries

This observational study follows 170 people with multiple sclerosis, neuromyelitis optica, and similar conditions, plus healthy volunteers, for up to 6 years. Researchers use MRI scans, blood tests, and spinal fluid analysis to monitor brain lesions and understand how the disease progresses. The goal is to learn more about the natural history of these disorders, not to test a new treatment.