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 |  | Common variant immunodeficiency
 
  antibody deficiencypresents in childhood or adult life (late onset)B cell numbers normal, failure to differentiatefew if any defects in T-cell function Clinical features
  infections
    
  follicular hyperplasia of lymph nodessplenomegaly Complications
  May develop autoimmune
    diseaseincreased risk of lymphoreticular malignancy Diagnosis
  reduced immunoglobulinnormal B cells numbers Treatment
  immunoglobulin replacement |