[Pathological anatomy of Lennert's lymphoma].

Characterization of Lennert's lymphoma morphological substrate is given on the basis of analysis of 32 biopsies (from 22 patients) and 6 autopsy cases studied histologically, histochemically and immunomorphologically. Morphological features of a progressing disease and transformation into the immunoblastic lymphosarcoma are described. The "prelymphomatous" nature of Lennert's lymphoma is suggested taking into consideration morphofunctional characteristics of the infiltrate cells, transitory properties of peculiar morphological changes and a frequent outcome into the immunoblastic lymphosarcoma of a B-cell genesis.