Pyloric atresia-junctional epidermolysis bullosa syndrome showing novel c.4505-4508insACTC mutations in integrin b4 gene (ITGB4).

Epidermolysis bullosa (EB) is a group of inherited blistering skin diseases that vary widely in their pathogenesis and severity. It has been divided into distinct subtypes depending on the level of tissue separation in the dermal- epidermal basement membrane zone. There are four main categories of EB: simplex, junctional, dystrophic and Kindler syndrome. Junctional epidermolysis bullosa with pyloric atresia (JEB-PA) is a rare autosomal recessive form and characterized by severe mucocutaneous blisters and gastric outlet obstruction. Most of the mutations in JEP-PA are associated with the α6β4 integrin genes (ITGA6, ITGB4,). Herein, we present a female newborn with lethal JEB-PA caused by a novel beta4 integrin mutation.