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 a group of inherited conditions that damage the peripheral nerves. It's also known as hereditary motor and sensory neuropathy (HMSN).The peripheral nerves are found outside the main central nervous system (brain and spinal cord).harcot-Marie-Tooth disease (CMT). Charcot-Marie-Tooth disease (CMT) is also known as hereditary motor and sensory neuropathy. An expert explains what the disease is, how it affects the nervous system and the possible causes.