Background Wiskott–Aldrich syndrome (WAS) is a rare X-linked recessive disorder characterized by early microthrombocytopenia, eczematous skin disease and recurrent infections. The syndrome is caused by mutations in gene WAS which codes WASP protein, that is expressed selectively in hematopoietic cells and it is involved in cell signaling and cytoskeleton reorganization. Microthrombocytopenia is...
