Fig. 5
A 59-year-old male with moderately differentiated adenocarcinoma (T3 stage). a Axial high resolution T2WI shows abnormal signals on the front of the intestinal wall. The muscularis propria displayed discontinuity and marginal haziness with a low-signal-intensity (arrow). b Diffusion-weighted image at b = 1000 s/mm2. c-e The ADC map shows the lesion with a low-signal-intensity (arrow) at b = 0, 1000 s/mm2, the mean ADC value of the lesion is 0.737 × 10− 3 mm2/s (c). 100, 1000, 1500 s/mm2, the mean ADC value is 0.597 × 10− 3 mm2/s (d). 500, 1500, 2000 s/mm2, the mean ADC value is 0.513 × 10− 3 mm2/s (e). f Postoperative pathology (haematoxylin and eosin, macro sections, × 1). Tumour tissue shows the muscularis propria is completely disrupted and tumour extension is into the mesorectum