Literally translated this means a disease that has caused itself, i.e. there is no underlying cause that can be identified. Many experts argue that there is no such thing as idiopathic A 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 and we have simply failed to identify the underlying cause. Perhaps the term “cryptopathic” would be better – “crypto” being a Greek word, denoting “hidden”.