A congenital nevus is a proliferation of benign melanocytes that is either present at birth or develops shortly afterwards. Congenital nevi are usually classified by size: small (less than 1.5 cm in diameter), medium (larger than 1.5 cm and up to 20 cm) or giant (measuring 20 cm in diameter or larger).
Scoliosis is a common condition related to syringomyelia in children; in fact, some studies have shown that more than 50% of children with a syrinx have abnormal spinal curvature.coliosis can be caused by congenital conditions, neurological conditions (like SM), or can be of unknown origins. 80% of scoliosis cases have an unknown cause and are labeled idiopathic. Treatment options include observation, bracing, and surgery.
Other causes of syringomyelia include an injury to the spinal cord, spinal tumors, or mass lesions. Arachnoiditis (inflammation of the thin membrane just inside the dura membranc) can also create an abnormal spinal cavity, and cause a syrinx to develop.he most common area for a syrinx to develop is in the cervical spine (neck), with the second most common in the thoracic spine. As the syrinx grows in size, it may cause scoliosis (abnormal curve of the spine), which is best evaluated by special x-rays of the spine.