Post-axial limb defects with maternal sodium valproate exposure

A male child is described with bilateral talipes equinovarus, absent fibulae with bowing and shortening of the tibiae and facial dysmorphic features. His mother was on a daily dose of 2000 mg sodium valproate for convulsions. This case raises the possibility that postaxial limb defects might be caused by intrauterine valproate exposure.