Fig. 2

FCH-PET/CT for staging and radiotherapy planning in a 78 y.o. patient with biopsy-proven PCa. Biopsy Gleason sum was 7 and PSA was 13 mg/L. MIP (a) and transaxial PET (b), fusion (c) and CT (d) views showed a moderately FCH-avid, multi-focal dominant intra-prostatic lesion in the right prostatic lobe (red arrows), consistent with a primary PCa lesion and the biopsy findings. A second area of milder focal uptake was seen in the left prostatic lobe (green arrows) and raised some suspicion for a contralateral PCa lesion. However, both the initial biopsy and a repeat biopsy were negative for the presence of PCa in that area, and the patient received high dose-rate brachytherapy to the right dominant lesion only, in addition to external radiotherapy