Topic summary
IgA deficiency
Extracted from the Wikipedia article Selective immunoglobulin A deficiency.
Signs and symptoms
IgA deficiency and common variable immunodeficiency (CVID) feature similar B celldifferentiation arrests, but it does not present the same lymphocyte subpopulation abnormalities. IgA-deficient patients may progress to panhypogammaglobulinemia characteristic of CVID. Selective IgA and CVID are found in the same family.