Synpolydactyly (type II syndactyly) with aplasia/hypoplasia of the middle phalanges of the toes: report on a family with eight affected members in four generations.

We describe a new family with synpolydactyly (syndactyly type II) with 8 affected members in 4 generations. Aplasia/hypoplasia of the middle phalanges of the toes was also noted. In our opinion, this anomaly represents a frequent manifestation of synpolydactyly. No other major skeletal or extraskeletal malformations were present.