title: Lymphocyte populations with abnormal kappa:lambda ratios in reactive lymphoid hyperplasia.
abstract: The lymph node biopsies of 12 patients with lymphadenopathy due to reactive hyperplasia contained lymphocyte populations with increased percentages of B-cells and abnormal numbers of cells with single class surface immunoglobulins. Ten patients were followed for periods of 3-30 months: one developed a non-Hodgkin's lymphoma and one Hodgkin's disease. One other has persisting lymph node enlargement. Two patients had nonlymphoid malignancies. The other six remain well without lymphadenopathy. Twenty-five of 40 patients with reactive lymph node hyperplasia and normal kappa/lambda ratios followed for 9-36 months had a similar incidence of lymphoid malignancy and persistent lymph node enlargement. The follow-up data so far available do not support a hypothesis that reactive lymphoid hyperplasia with increased numbers of cells with single class surface immunoglobulin is associated with higher morbidity than reactive hyperplasia containing the usual polytypic lymphocyte populations.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D006965:Hyperplasia / Q000473:pathology; D007147:Immunoglobulin Light Chains / Q000032:analysis*; D007145:Immunoglobulin kappa-Chains / Q000032:analysis*; D007146:Immunoglobulin lambda-Chains / Q000032:analysis*; D008198:Lymph Nodes / Q000473:pathology*; D008206:Lymphatic Diseases / Q000276:immunology* / Q000473:pathology; D008214:Lymphocytes / Q000276:immunology*; D008297:Male; D008875:Middle Aged; D011947:Receptors, Antigen, B-Cell / Q000032:analysis
chemical_list: D007147:Immunoglobulin Light Chains; D007145:Immunoglobulin kappa-Chains; D007146:Immunoglobulin lambda-Chains; D011947:Receptors, Antigen, B-Cell