Fig. 2

A 75 years-old male patient with a high-risk prostate cancer (initial stage T3N0, Gleason score 7 (3 + 4), a baseline PSA level of 8 ng/mL), initially treated by EBRT and adjuvant hormonotherapy. The patient presented with a biochemical recurrence after 4 years of follow-up (PSA: 2.77 ng/mL; nadir: 0.03 ng/mL; PSA doubling time 2.17 months). A whole-body bone SPECT/CT was performed (a Maximum Intensity Projection (MIP) image and axial plane) and multiple osteoblastic lesions interesting the pelvis (white arrow), the ribs, the right humeral head were observed. The patient had a recent fracture of the left clavicle. FCH PET/CT (see the image from (b) with MIP image) confirmed the presence of multiple bone metastases (of which some lesions not visualized in bone SPECT/CT), with no lesion on the prostate bed or the lymph node. A treatment by hormonotherapy was introduced