Giant axonal neuropathy: The first Iranian case with a variation in the gigaxonin gene and a glance to the other cases.

Giant axonal neuropathy (GAN) is a very rare fatal neurodegenerative disorder with clinical and allelic heterogeneity. The disease is caused by mutations in the GAN (gigaxonin) gene. Herein, we reported the clinical presentations and results of genetic analysis of the first Iranian GAN case.