A rare multiple congenital anomalies/dysmorphic syndrome characterized by the association of dysplastic external ears, nail hypoplasia, and variable skeletal malformations, such as hypoplastic or absent fibulae, abnormalities of the scapula, clavicle, and acromioclavicular joint, and talipes equinovarus, among others. Joint contractures and mild facial dysmorphism have also been reported.

This syndrome has main characteristics of bowing of the femora, aplasia or hypoplasia of the fibulae and poly, oligo and syndactyly. It has been reported in 11 patients. Most of the patients also had a hypoplastic pelvis and hypoplasia of the fingers and fingernails. Some had congenital dislocation of the hip, absence or fusion of tarsal bones, absence of various metatarsals and hypoplasia and aplasia of the toes. The syndrome is caused by a partial loss of WNT7A function (gene mapped to 3p25).

Ectrodactyly (split-hand/foot malformation) associated with fibular hypoplasia/aplasia is a rare disorder that appears to be inherited in an autosomal dominant fashion with reduced penetrance and variable expression (Evans et al., 2002). A form of fibular hypoplasia/aplasia associated with oligosyndactyly and tibial campomelia has been reported (FATCO syndrome; 246570). Split-hand/foot malformation associated with tibial hypoplasia/aplasia has also been described (see SHFLD1, 119100).