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Locally advanced rectal cancer in a 50-year-old man. A, Axial T2-weighted MR image shows a T4-stage rectal tumor with predominant thickening of the right wall. B, Axial 18F-FDG PET/CT demonstrates high tumor 18F-FDG uptake (SUVmean = 10.5 g/mL, SUVmax = 14.7 g/mL). C and D, Axial diffusion-weighted image and ADC map show diffusion restriction within the tumor (ADCmean = 953 × 10−6 mm2/s, ADCmin = 882 × 10−6 mm2/s).
