[…] products with Specific Ig Labs: decreased plasma cells, decreased secretory IgA Common Variable Immunodeficiency (CVID) Defect: Defect in B cell maturation (many causes)
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Presentation: Acquired in 20-30s, increased risk of other autoimmune diseases, lymphoma, sinopulmonary infections Labs: Normal B cells, decreased plasma cells, decreased Ig
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(Type 2)(defective class switching) Presentation: Severe pyogenic infections early in life Labs: increased IgM, decreased Ig's of other classes Selective Ig Deficiency (IgA
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