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  • Title: Phenotypic expression of non-Hodgkin's lymphomas in China.
    Author: Xu LZ, Tu LY, Liu YF, Hsu SM, Qiu BS, Li ZX.
    Journal: J Natl Cancer Inst; 1984 Sep; 73(3):635-8. PubMed ID: 6236322.
    Abstract:
    Monoclonal antibodies were used to label malignant lymphomas obtained from 57 patients. On the basis of morphologic criteria, 18 lymphomas were the B-cell type, 10 were the T-cell type, and 6 were histiocytic; for 23 the type could not be determined. After monoclonal antibody labeling, 18 lymphomas of B-cell lineage were confirmed, 16 of the T-cell type were demonstrated, 6 were true histiocytic, and 17 were the null cell (non-T, non-B) type. Of the 16 lymphomas of T-cell lineage, 6 were lymphoblastic and 10 were the peripheral type. The percentages of cell types in the non-Hodgkin's lymphomas were as follows: B-cell, 31.5%; T-cell, 28%; null cell, 29%; and histiocytic, 10%. Of the 16 lymphomas of T-cell origin, 15 belonged to helper T-cell subsets (Leu1+, Leu4+, and Leu3a+), and the la marker was positive in all 16. Of the 18 B-cell lymphomas, 14 were kappa-positive and 4 were lambda-positive. Eleven were both B1- and kappa-positive, and 1 was kappa-positive but B1-negative. In the 4 cases that were lambda-positive, 2 were both lambda- and B1-positive. The results indicate that Leu4, Leu2a, Leu3a, and B1 are the most important markers to differentiate T-cell and B-cell lymphomas for pathologic classification. The findings also show a higher percentage of T-cell neoplasm in China as compared to that in Western countries.
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