Chromosomal abnormalities in angio-immunoblastic lymphadenopathy

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Abstract
Chromosomal studies have been performed in 2 patients with angio-immunoblastic lymphadenopathy. In both the cases the presence of abnormal cell lines characterized by marker chromosomes has been detected. Application of banding techniques allowed to detect the structural composition of the marker chromosome in 1 of the cases and to show a clonal evolutive pattern of the rearranged chromosomal set. In the same patient a consistent Y loss observed in the major fraction of the investigated metaphases did not appear to be related to any defined rearrangement of the karyotype. Longitudinal chromosomal studies are stressed in order to better correlate the cytogenetic abnormalities and the immunoreactive picture of the lymph nodes along the course of the disease.