X-linked Hyper-IgM syndrome; CD40 ligand deficiency |
Tonsillar hypertrophy; Gingivitis; Ulcerative stomatitis; Hepatomegaly; hepatitis; Splenomegaly; Diarrhea; Proctitis; Neutropenia, chronic or cyclic; Anemia; Hemolytic anemia; Thrombocytopenia; Immunodeficiency; Dysgammaglobulinemia; Primary dysfunction of B-lymphocyte isotype switching and memory B-cell generation; Lymph nodes lack germinal centers; Normal or increased IgM; Serum IgA, IgG, and IgE severely deficient; B-cell count normal; Decreased T cell activation; Recurrent bacterial infections; Pneumocytosis carinii infection; Pneumocytosis carinii infection; Opportunistic infections; cholangitis; higher risk of malignancy; IgM+ and IgD+ B cells present; hemolytic anemia |
Combined T-cell and B-cell immunodeficiencies; Predominantly antibody deficiencies |
X-linked recessive |