[Translocation t(11;14) (q13;q32) in six patients with lymphoid malignancies of mature B-cell phenotype].

We described six patients with t(11;14)(q13;q32) in lymphoid malignancies. Based on the histologic or morphologic findings of these patients, malignant lymphoma diffuse large cell (ML-DL) was diagnosed in two patients, small lymphocytic (SL) in one, mantle zone lymphoma (MZL) in one, prolymphocytic leukemia (PLL) in one, and chronic lymphocytic leukemia with > 10% prolymphocytes (CLL/PL) in one. Three cases showed involvement of the gastro-intestinal tract, and four were leukemic. Five cases were dead 12 to 25 months after the time of chromosomal analysis. Immunological studies revealed that all the patients were positive for CD5, CD20, HLA-DR, and only one was weak positive for CD10. Using probe b, SstI-Sst I segment, Southern blot analysis showed the rearrangement of BCL-1 gene in a patient with MZL. Our results suggested that t(11;14) is found in lymphoid malignancies with mature B-cell phenotype and that hepatosplenomegaly, gastrointestinal involvement, leukemic manifestation, and poor prognosis are common clinical features.