Lymphocytic leukemia with coexistent localized reticulum cell sarcoma

Three cases of lymphocytic leukemia are reported in which autopsy disclosed the unexpected findings of a coexistent localized reticulum cell sarcoma. As in previously reported cases of this coexistence, the leukemia preceded the sarcoma and the two diseases coexisted at autopsy with a dual character. The author suggests the relation of the leukemia and sarcoma differed in each of the three cases. Previously reported cases of a second form of association—lymphocytic leukemia and Hodgkin's disease—are reviewed. The author believes that these latter cases represent either chance occurrence or errors in interpretation.