[Diagnostic and therapeutic puncture sonography of the prostate].

Endosonography of the prostate in combination with ultrasonically guided biopsy is indicated to detect subclinical cancer and to determine local tumour extent. It is easy to puncture any area of interest in the prostate under accurate ultrasound guidance. The percutaneous, transperineal and ultrasonically guided 125iodine implantation enables, as an alternative procedure to radical surgery, good local tumour control in prostatic carcinoma. Ultrasonically guided puncture technique and implantation procedure are described and preliminary clinical results are presented.