[Regression and disappearance of bone metastasis in a case of prostatic carcinoma after bilateral orchidectomy and oestrogen therapy (author's transl)].

The author reports an exceptional case of 12 years survival in a case of prostatic carcinoma with bone metastases. He notes the high degree of hormone dependence of this tumour which was seen particularly clearly following bilateral orchidectomy. Certain bone metastases disappeared completely whilst others regressed. A precise immunological study demonstrated the preservation of immune potential despite the presence of metastases.