Scoliosis polymorphisms in the "MATN1" gene (encoding for matrilin 1, cartilage matrix protein). Fifty-three single nucleotide polymorphism markers in the DNA that are significantly associated with adolescent idiopathic scoliosis were identified through a genome-wide association study. Adolescent idiopathic scoliosis has no clear causal agent, and is generally believed to be multifactorial. The prevalence of scoliosis is 1% to 2% among adolescents, but the likelihood of progression among adolescents with a Cobb angle less than 20° is about 10% to 20%. Congenital scoliosis can be attributed to a malformation of the spine during weeks three to six "in utero" due to a
Supernumerary body part and two legs. People with this condition often wish to amputate what they see as additional body parts. A phantom limb is the sensation that a missing limb is still attached to the body. A supernumerary phantom limb is the sensation of having an extra limb or body part despite no such limb actually existing. It is an uncommon syndrome, usually due to some kind of brain injuries in the somatosensory cortex or in some parts of the right hemisphere of the brain, usually due to a stroke in the brain. A chimera is an animal or plant that has