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

Figure 4. 54-year-old patient with bone metastasis in the left pelvis nine years after radical prostatectomy (initial Gleason Score: 8).

Figure 4

The PSA level at the time of imaging was 2.3 ng/mL. A fall in PSA level after pelvic irradiation confirmed a malignant lesion (1.0 ng/mL after radiation therapy). A. Axial PET/CT fusion image showing a focal 11C-choline uptake in the area of the posterior iliac bone (white arrow, SUV max 3.97). B. The lesion shows no substantial sclerosis (HU 708) and is hardly visible on CT. C. Axial 500 ms b-image and D. ADC map showing only a slight signal abnormality of the lesion in the left iliac bone (relative ADC lesion/normal bone: 1.02) (white and black arrows). E. The STIR image shows slight focal signal elevation (relative STIR SI lesion/normal bone: 0.90) and F. slight signal distortion can be seen on the T1w image (white arrow, relative SI lesion/normal bone: 1.05).