<prompt> Which is a finding in lymphoid tissues in individuals with common variable hypogammaglobulinemia?Decreased B cell countIncreased B cell countNormal B cell countAbsent B cells  <response>: Common Variable Immunodeficiency Near Normal number of B cells in blood LN Unable to differentiate to plasma cells Intrinsic B cell defects - defective CK receptor BAFF Also abnormal T cell regulation of B cells Both sexes equally; manifest in childhood or adolescence Presents as Recurrent sinopulmonary pyogenic infections Recurrent herpes V infection Persistent diarrhoea by G Lamblia RA Lymphoid malignancy 