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A cytogenetic, phenotypic, and molecular study of an immunoblastic lymphoma with a 14q + translocation
G Sozzi1, A Agresti, M G Bertoglio
1Division of Experimental Oncology A, Istituto Nazionale per lo Studio e la Cura dei Tumori, Milan, Italy.
Abstract:
An uncultured immunoblastic lymphoma, obtained from an untreated patient, was examined from a cytogenetic, immunophenotypic, and molecular viewpoint. The B-cell lineage, immunoglobulin light-chain type, and percentage of neoplastic cells were determined immunologically. Karyotyping showed the presence of a 14q + marker and suggested that the donor chromosome was chromosome 8. Southern-blot analysis of DNA from normal and lymphoma cells, using a molecular probes sequences related to the IGHJ and IGK immunoglobulin genes, confirmed the immunophenotype. A similar analysis, using probes homologous to IGHAC and MYC genes, showed that the t(8;14) detected by cytogenetic analysis resulted in a IGHAC-MYC rearrangement.