Inclusion Criteria:  WHO performance status of 0-2, histologically confirmed prostate adenocarcinoma: Gleason score - 6-7 (4+3), clinical stage T1c-T2c, N0, M0 T and N stage determined by clinical examinations, MRI and/or PET-CT with PSMA PSA below 20 ng/ml within the last 30 days international prostate index score (IPSS) below 16 medically fit to spinal anesthesia prostate volume below 110 cm³ maximal urinary rate above 9 ml/sec, residual urine volume below 30ml, in the case of previous transurethral resection interval of at least 9 months after procedure.  Exclusion Criteria:  stage T3-T4, PSA > 20 ng/ml, clinically detected lymph node or distant metastases, previous pelvic irradiation, rectal surgery.