the neoplastic cells isolated from 18 t-cell malignancies were bl2- . bl2 was was heterogeneously expressed by a variable proportion of the malignant cells in 29/32 cases of b-chronic lymphocytic leukemia and 33/38 cases of b-cell lymphomas , but appeared to be lost in the terminal stages of b-cell differentiation , as myeloma plasma cells were bl2- . bl2 expression was not limited to b cells of a particular surface immunoglobulin isotype .
C0597032
neoplastic cells
C0006826
malignancies