Netherton Syndrome in two sisters

Abstract

Netherton Syndrome is a rare autosomal recessive inherited disorder, characterized by triad of congenital ichthyosiform dermatosis, trichorrhexis invaginata and atopy diathesis. It has been found to be due to mutations in SPINK5, a gene encoding LEKTI (lympho-epithelial Kazal-type related inhibitor). LEKTI is a serine proteinase inhibitor that is expressed in epithelial and lymphoid tissues, and may be important in the keratinocyte terminal differentiation and T and B cell maturation. We herein report two cases of Netherton Syndrome in sisters who had ichthyosis linearis circumflexa, trichorrhexis invaginata and atropic dermatitis.