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. 2017 Mar 15;8(39):66516–66527. doi: 10.18632/oncotarget.16227

Figure 2. 68-year-old patient with local recurrence 13 years after radical prostatectomy (initial Gleason Score: 8).

Figure 2

The PSA level at the time of imaging was 2.1 ng/mL. A fall in PSA level after pelvic irradiation confirmed the lesion was malignant (< 1.0 ng/mL after radiotherapy). A. The axial PET/CT fusion image shows focal 11C-choline uptake in the area of the right neurovascular bundle (white arrow, SUV max 4.2). B. The lesion was not visible on the 500 ms b-image (B) or the ADC map (not shown) of the DWI. Both the STIR image C. and the T1w image D. show susceptibility artefacts due to surgical clips in the area of focal 11C-choline uptake. Part of the lesion, however, remains visible in spite of some signal loss (white arrows).