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Fig. 2C —58-year-old man with histopathologically proven T3a prostate cancer with prostate-specific antigen level of 7.7 ng/mL and Gleason score of 6 (2 + 4). Spectroscopy showed no tumor voxels despite histologically proven prostate carcinoma. Overlaid spectral grid and voxels covering suspicious lesions showing normal metabolite levels with high citrate and low choline values.