Radiation therapy for XXXX .

@entity1 @entity528 @entity263 @entity5
From 1962 to 1980, 124 @entity1 were hospitalized for treatment of @entity263 . Of these, a total of 115 underwent radiation therapy. Thirty-five @entity1 were classified as stages I and II, 12 as stage III, and 77 as stage IV. The five-year survival rate for @entity1 in stages I and II was 72% in the radiation therapy group and 33% in the nonradiation therapy group. In stages III and IV, there was no difference in survival rate between the radiation and nonradiation therapy groups. Histological examination of prostate tissues of @entity1 treated by radiation therapy revealed various degrees of change in the @entity5 cells, ranging from @entity528 . The degree of change was not related to the stage of the disease. Also, no histological differences in prostate specimens from @entity1 who received 4,000-5,000 rads versus 5,000-6,000 rads was observed. Rectal examination indicated that radiation therapy was effective in 93% of the @entity1 in stages I and II, 75% in the stage III, and 71% in the stage IV. The rates of reactivation were 28% for stages I and II, 12% for stage III, and 43% for stage IV.
