Posted in Web Syringomyelia: Causes, Symptoms, and Diagnosis January 4, 2021 Syringomyelia is a rare disorder in which a fluid-filled cyst forms within your spinal cord. This cyst is referred to as a syrinx. As the syrinx expands and lengthens over time, it compresses and… https://www.healthline.com/health/syringomyelia