Figure 1. Clinical features of JEB-H and JEB-other. (A) Extensive blisters and erosions on the gluteal area and pronounced nail involvement in an infant with JEB-H and LAMB3 null mutations. (B) Blisters and crusts on the trunk and hand of a 25-y-old patient with JEB-other who is compound heterozygous for a nonsense and a missense mutation in the LAMB3 gene. Note also the partial nail dystrophy.