Nesrine Radwan, assistant lecturer of pediatrics, faculty of medicine, Ain Shams University, Cairo, Egypt.

Background: HIES is a rare primary immunodeficiency characterized by recurrent eczema, skin abscesses, lung infections, eosinophilia and high serum levels of IgE. Two form of HIES have been described, including an autosomal dominant (AD, or type 1) and an autosomal recessive (AR, or type 2) form. These two forms share overlapping clinical and laboratory features. However, they also exhibit distinct clinical manifestations, courses and outcomes.

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