[Histological effects of endocrine therapy on prostatic cancer]

Histological effects of endocrine therapy were evaluated in one hundred and four prostatic cancer patients by new criteria presented by the committee of "General Rule for Clinical and Pathological Studies on Prostatic Cancer". Route and time of biopsy, clinical stage and histological grade were related to histological effects. Biopsy specimens taken within three months from the start of the therapy tended to score rather low marks and this tendency is especially apparent with low grade cancers. Histological effects evaluated by the present method correlated well with prognosis in localized stages (stage B, C and D1). In metastatic cases, however, local effects were not related to the prognosis.