IRRADIATION THERAPY OF MALIGNANT LYMPHOMA OF THE NASOPHARYNX—AN ANALYSIS OF 64 CASES

Results of radiotherapy of 64 cases of malignant lymphoma of the nasopharynx treated from June 1971 to Aug. 1937 were reported. One-, three-, five-, ten-, and fifteen-year survival rates were 71.9％(64/64), 68.8％ (44/64), 57.6％ (34/59), 68.8％ (11/18) respectively. Factors influencing the result Were mainly: ages; systemic symptoms; clinical stage; the presence of tumor mass at the end of radiotherapy; tumor dose, et al. The principle cause of failure was involvement of other organs, of which abdominal organ predominated. Other cause was recurrance of the primary lesion and 70.6％ (12/17) recurrance ocurred recurrance ocurred within one year after radiation.