Differential diagnosis of common variable immunodeficiency are :
-multiple myeloma
-immunodeficiency with thymoma
-X linked agammaglobulinemia
-systemic lupus erythematosus
-celiac sprue
-asplenism
-cystic fibrosis
-selective IgA deficiency
-AIDS
-leukemia
-corticosteroid use
-multiple myeloma
-immunodeficiency with thymoma
-X linked agammaglobulinemia
-systemic lupus erythematosus
-celiac sprue
-asplenism
-cystic fibrosis
-selective IgA deficiency
-AIDS
-leukemia
-corticosteroid use