Charcot–Marie–Tooth disease belongs to the group of genetically and phenotypically heterogeneous sensory-motor polyneuropathies. Charcot–Marie–Tooth disease type 2A (CMT2A) is the most common axonal form of the disease caused by mutations in the mitofusin-2 gene (MFN2). More than 100 missense mutations in this gene have been registered to date. Many studies have demonstrated the variability of clinical presentation depending on the specific localization of the substitution. The presented clinical case shows the peculiarities of the phenotype of a patient with CMT2A disease associated with the c.1091G>C (p.Arg364Pro) missense mutation in the MFN2 gene.