[Pes valgoplanus in Friedreich and Charcot-Marie-Tooth-Hoffmann disease].

An increasingly severe hollow foot deformity is typical of Friedreich's hereditary ataxia and Charcot-Marie-Tooth's progressive muscular atrophy. However, on the basis of personal observations it has been found that in infancy, patients with either of these diseases may have an extreme pes valgoplanus. The retrospective analysis presented here is intended to draw attention to this possibility and to point out that these diseases should also be taken into consideration in the differential diagnosis of the cause of a pes valgoplanus.