Rapp-Hodgkin ectodermal dysplasia.

Rapp-Hodgkin syndrome is a rare condition that is characterized by ectodermal dysplasia and palatal abnormalities. We describe a 24-year-old white woman who has Rapp-Hodgkin syndrome that is associated with a chronic palmar keratoderma, which is a finding that has not been previously reported. We review the literature, assign the clinical features into major and minor categories, and suggest therapeutic interventions to limit the significant sequelae of this autosomal dominant syndrome.