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.
URL of this page: //medlineplus.gov/ency/article/000727.htm. Charcot-Marie-Tooth disease is a group of disorders passed down through families that affect the nerves outside the brain and spine. These are called the peripheral nerves. Charcot-Marie-Tooth is one of the most common nerve-related disorders passed down through families (inherited). Changes to at least 40 genes cause different forms of this disease. The disease leads to damage or destruction to the covering (myelin sheath) around nerve fibers.