This document provides an overview of syringomyelia, including its pathogenesis, pathology, classification, clinical features, and natural history. Syringomyelia is a condition characterized by fluid-filled cavities within the spinal cord. It most commonly affects the cervical and thoracic regions. Clinical features include pain and sensory loss. The natural history varies, but symptoms typically progress slowly over years, with some patients experiencing stabilization or spontaneous resolution in rare cases.