A child with an obvious rash presents with recurrent infections. The investigation revealed decreased platelet count and reduced IgM.  Which of the following is the most likely diagnosis –: (A) Idiopathic Thrombocytopenic Purpura, (B) Thrombotic Thrombocytopenic Purpura, (C) Wiskott–Aldrich Syndrome, (D) Di' George anomaly
Answer is C. The classical triad of rash, thrombocytopenia and recurrent infection (immunodeficiency; ↓-IgM) suggest a diagnosis of Wiskott-Aldrich Syndrome.