The early stage of large granular lymphocyte leukemia in the F344 rat

In the early stages of large granular lymphocyte leukemia of F344 rats, splenic congestion and lymphocytic depletion of the splenic white pulp are the most significant and consistent histologic findings. The diagnosis of early leukemia was confirmed by immunocytochemical demonstration that the cell surface of leukemic large granular lymphocytes reacted with OX-8 monoclonal antibodies and by transplantation of the disease at early stages to healthy weanling rats.