| A rare genetic peripheral neuropathy with characteristics of congenital insensitivity to pain, muscular hypotonia and gastrointestinal disturbances. Patients present with delayed motor milestones achievement, self-mutilations, skin ulcers, poor wound healing, painless fractures, hyperhidrosis, abdominal discomfort, diarrhea and/or constipation. Cognitive development is normal. Caused by heterozygous mutation in the SCN11A gene on chromosome 3p22. |