[Chromosome aberrations and malignant lymphomas]

Chromosomal findings in malignant lymphomas are correlated to the histopathology and the immunologic phenotype of lymphoma subgroups. The prognostic significance of a cytogenetic analysis and its value for therapy planning are discussed. With respect to tumorigenesis it is emphasized that a number of proto-oncogenes and genes for cell differentiation, such as immunoglobulin and T-cell receptor genes, have been localized at sites of recurring chromosomal rearrangements. One chapter deals with cytogenetic data in correlation to findings of DNA recombination studies in Hodgkin's disease.