<prompt> A 5 year old boy has recurrent infections. low platelet count and rash as shown below. What is the likely diagnosis?Severe Combined ImmunodeficiencyJob SyndromeBrutons AgammaglobulinemiaWiskott Aldrich Syndrome  <response>: The above clinical picture is suggestive of Wiskott aldrich syndrome Wiskott aldrich syndrome - X-linked disorder Defect in WASP gene Chromosome X p 11 Clinical features -Triad of Eczema Recurrent infections Thrombocytopenia with small platelets Diagnosis - Platelets - small and decreased in number IgM - low IgE and IgA - Elevated 