Fig. 7From: Interpretation of 11C–choline PET/CT for the diagnosis of local relapse in radically treated prostate cancerPSA serum level of the false positive cases. This graph shows in detail the trigger PSA of all the true positive cases described in this study, demonstrating that nearly a half of the false positive cases (5/11) has a PSA serum level < 1 ng/mlBack to article page