Inclusion Criteria:  - High risk localized/locally advanced prostate cancer patients who are candidates for radical prostatectomy plus bilateral extended PLND; ISUP Gleason grade group ≥ 4  Exclusion Criteria:  - Prior history of any other cancer the last 5 years excluding basal cell carcinoma Proven metastases in bones or other distant metastases General contra-indications for MRI (pacemaker, aneurysm clips, any form of metal in the body, severe claustrophobia) Serious concomitant systemic disorders that in the opinion of the investigator would compromise the patient's ability to complete the study or interfere with the evaluation of the efficacy and safety of the study objectives Metal implants in the pelvic region which will deteriorate PET/MR/CT image quality.