HMSN 1D (medical condition)

CMT is an inherited neurological disease characterized by the gradual degeneration of nerves which starts in the hands and feet and results in progressive numbness, muscle weakness and loss of function. Type 1D is caused by a defect of the ERG2 gene on chromosome 10 and usually results in a severe form of the disease. See also Charcot-Marie-Tooth disease, Type 1D