[Incidence of malignant lymphoma and leukemias in East Germany].

On the basis of the data of the National Cancer Registry of the GDR from 1964 to 1977 the incidence of malignant neoplasms of the lymphatic and haematopoietic tissues are investigated. A slight increase from period A (1964-1966) to period B (1968-1972) and a general increase of the number of diseases at oldest age from 1964 to 1977 refers to an improved quality of the diagnostics and registration. In the leukaemias in childhood and adolescence shifts from the myeloic to the lymphatic leukaemia are found which are attributed to the exacter classification. Altogether there are no references to an increased risk of falling ill with malignant lymphomas and leukaemias in the period of the report.