This term refers to the process by which fluid accumulates inside syringomyeliaA cavity, within the spinal cord, which is filled with cerebrospinal fluid. Syringomyelia cavities come in various “shapes and sizes”, from short, spindle-shaped cavities through to long, tense cavities extending throughout the greater part of the spinal cord. Read more cavities.
Many theories exist, backed by varying degrees of experimental or radiological evidence, but none explains how all the different types of cavities form.