Wolf-Hirschhorn syndrome and a split-hand malformation.

Ectrodactyly has not previously been reported in children with Wolf-Hirschhorn syndrome (WHS). Based on this premise and the identification of an unbalanced translocation between chromosomes 4p15 and 10q25 in a fetus with ectrodactyly and hemimelia, a second locus for dominantly inherited split hand/foot malformation (SHFM3) was mapped to chromosome 10q24-q25. We present the clinical findings of an infant with WHS and SHFM and suggest that the presence of additional loci on 4p which modify/cause SHFM cannot be excluded.