Fig. 24

¹⁸F-fluorocholine, prostate cancer, response evaluation. Clinical history: 73 y.o. man with prostate cancer, Gleason score 4 + 3, treated with radical prostatectomy. BCR with PSA 2.3 ng/ml PSAdt 6 months; evaluation after 2 months of hormonal treatment (PSA 0.5 ng/ml). PET/CT findings: intense ¹⁸F-Choline uptake in the vertebra before therapy (a MIP; b fused and CT) not visible after 2 months of hormonal treatment (c MIP; d fused and CT)