title: Lymphocytes forming rosettes with sheep erythrocytes in metastatic pleural effusions.
abstract: Percentages of lymphocytes forming rosettes with sheep erythrocytes at 29 degrees C were determined in 10 cancer patients with metastases to the pleural cavity. Compared with normal controls, the patients showed a decreased proportion of rosette-forming cells (RFC) in the peripheral blood. The same patients had elevated levels of RFC in their metastatic pleural effusions. However, 2 patients with benign diseases had normal levels of RFC in their peripheral blood and pleural transudates. These observations suggested that in cancer patients some T-cells might migrate from the peripheral blood and accumulate in sites of tumor infiltration such as the pleural cavity.
mesh_terms: D000328:Adult; D000368:Aged; D004912:Erythrocytes / Q000276:immunology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009362:Neoplasm Metastasis; D010996:Pleural Effusion / Q000276:immunology*; D010997:Pleural Neoplasms / Q000097:blood / Q000276:immunology*; D013601:T-Lymphocytes / Q000276:immunology*