Perinatal. Referring to the period of time surrounding an infant's birth, from the last two months of pregnancy to the first 28 days of life. The TORCH panel tests for perinatal infections.
1 CMT1 is commonly caused by a duplication of a gene on chromosome 17. This gene controls the production of your nervesâ protective myelin sheath. CMT1 is also caused by other gene defects.  CMT2 results from a defect in your peripheral nerve cellsâ axon. This is caused by a defect in your mitofusin 2 gene.
Charcot-Marie-Tooth disease (CMT) is an inherited peripheral nerve disorder. Your peripheral nerves are located on the surface of your brain and your spinal cord. These nerves connect your central nervous system to the rest of your body. CMT was named after the physicians who discovered it in 1886: Jean-Martin Charcot, Pierre Marie, and Henry Tooth.