title: Leucocyte migration inhibition and rosette tests in pleural effusion.
abstract: Lymphocytes from pleural effusions have been examined with leucocyte migration inhibition tests (LMIT) and the numbers of B and T lymphocytes estimated. In cases of tuberculous pleurisy a positive LMIT was more frequent than in those of neoplastic etiology. In cases of other etiology no difference has been observed. The proportion of T lymphocytes in pleural effusions from patients with neoplasia was significantly higher (P < 0.01) than in other diseases. The number of B lymphocytes was also lower than in cases of other etiology (P < 0.01). The per cent distribution of T and B lymphocytes in tuberculous pleural effusion differed markedly from that of malignant etiology, in the former the proportion of B lymphocytes was high while that of T lymphocytes was low.
mesh_terms: D000328:Adult; D000368:Aged; D001402:B-Lymphocytes / Q000276:immunology; D002464:Cell Migration Inhibition; D006801:Humans; D007958:Leukocyte Count; D008175:Lung Neoplasms / Q000150:complications / Q000276:immunology; D008875:Middle Aged; D010996:Pleural Effusion / Q000209:etiology / Q000276:immunology*; D012397:Rosette Formation; D013601:T-Lymphocytes / Q000276:immunology; D014397:Tuberculosis, Pulmonary / Q000150:complications / Q000276:immunology