CRP and Increased total eosinophil count: Laboratory investigations revealed blood eosinophilia (670 cells/μL; reference range < 300cells/μL), polyclonal hypergammaglobulinemia with immunoglobulin (Ig) G: 1989 mg/dL(reference range: 650-1500 mg/dL); IgA: 458 mg/dL (reference range: 78-312 mg/dL); IgE: 190 UI/ml (reference range < 100 UI/ml), elevated CRP (1.9 mg/dL; reference range <0.5mg/dL), and an ESR of 25 mm/h (reference range < 30mm/h).