Syringomyelia, also known as hydromyelia, is related to arachnoiditis and spinal cord disease, and has symptoms including back pain, headache and pain. An important gene associated with Syringomyelia is OBP2A (Odorant Binding Protein 2A), and among its related pathways/superpathways are Signal Transduction and MAPK signaling pathway. The drugs Lidocaine and Anesthetics have been mentioned in the context of this disorder. Affiliated tissues include spinal cord and brain, and related phenotypes are nervous system and growth/size/body region