Familial dysautonomia (FD) is an autosomal recessive congenital neuropathy which results from poor development and progressive degeneration of the nervous system. The mutation responsible for FD was found at the 5�ss of intron 20 of the IKBKAP gene, encoding the I?B kinase complex-associated protein (IKAP...

Familial dysautonomia (FD) is an autosomal recessive congenital neuropathy which results from poor development and progressive degeneration of the nervous system. The mutation responsible for FD was found at the 5�ss of intron 20 of the IKBKAP gene, encoding the I?B kinase complex-associated protein (IKAP...

Familial dysautonomia (FD) is an autosomal recessive congenital neuropathy which results from poor development and progressive degeneration of the nervous system. The mutation responsible for FD was found at the 5�ss of intron 20 of the IKBKAP gene, encoding the I?B kinase complex-associated protein (IKAP...

Familial dysautonomia (FD) is an autosomal recessive congenital neuropathy which results from poor development and progressive degeneration of the nervous system. The mutation responsible for FD was found at the 5�ss of intron 20 of the IKBKAP gene, encoding the I?B kinase complex-associated protein (IKAP...

Familial dysautonomia (FD) is an autosomal recessive congenital neuropathy which results from poor development and progressive degeneration of the nervous system. The mutation responsible for FD was found at the 5�ss of intron 20 of the IKBKAP gene, encoding the I?B kinase complex-associated protein (IKAP...

Familial dysautonomia (FD) is an autosomal recessive congenital neuropathy which results from poor development and progressive degeneration of the nervous system. The mutation responsible for FD was found at the 5�ss of intron 20 of the IKBKAP gene, encoding the I?B kinase complex-associated protein (IKAP...

Familial dysautonomia (FD) is an autosomal recessive congenital neuropathy which results from poor development and progressive degeneration of the nervous system. The mutation responsible for FD was found at the 5�ss of intron 20 of the IKBKAP gene, encoding the I?B kinase complex-associated protein (IKAP...

Familial dysautonomia, also known as Riley-Day syndrome, is a disorder of autonomic nervous system with an autosomal recessive mode of inheritance. Reduction and/or loss of unmyelinated and small myelinated fibers is found, as reduction of dopamine beta-hydroxylase in blood. The diagnosis is based on clinical features: diminished lacrimation, insensitivity to pain, poor temperature control, abo...

We report the bilateral absence of response to tests of vestibular function in 5 patients with familial dysautonomia.