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.
Idiopathic scoliosis, the most common type, does not have a known cause. Children who have this type of scoliosis usually first develop symptoms in childhood. Most cases of scoliosis are mild, involving small curves in the spine that do not get worse. Small curves usually do not cause pain or other problems. Usually a doctor examines the child every 4 to 6 months to watch for any changes. In moderate or severe cases of scoliosis, the curves continue to get worse.