A child with hypohidrotic ectodermal dysplasia with features of a collodion membrane.

Collodion membrane is a presenting phenotype common to several disorders, predominantly congenital ichthyoses. Seventy percent of infants born with hypohidrotic (anhidrotic) ectodermal dysplasia are noted by their parents to have significant scaling and peeling. Although dry skin is a frequently reported sign in children with hypohidrotic ectodermal dysplasia, only one French study has reported a true collodion membrane at birth. We suspect that scaling with features of collodion membrane is more common in infants than is reflected in the literature, and we describe another such infant, later diagnosed with hypohidrotic ectodermal dysplasia.