[Progress of radiation therapy in malignant lymphomas].

Radiation therapy is keeping an important role on treating stage I, II and III A Hodgkin's disease. Several prognostic factors influencing treatment result were discovered recently even though patients conditions belong to the same stage. Owing to rapid progress of multi-anticancer drug chemotherapy, indication of radiotherapy of non-Hodgkin's lymphoma has become narrower than 10 years ago. However, radiotherapy is important to cure both stage I and early stage II non-Hodgkin's lymphoma with low or intermediate grade histological malignancy.