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Fig. 4 | Cancer Imaging

Fig. 4

From: Diffusion-weighted imaging of rectal cancer on repeatability and cancer characterization: an effect of b-value distribution study

Fig. 4

A 58-year-old male with moderately differentiated adenocarcinoma (T2 stage). a Axial high resolution T2WI shows the tumour of the posterior rectal wall (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 0.999 × 10− 3 mm2/s (c). 100, 1000, 1500 s/mm2, the mean ADC value is 0.832 × 10− 3 mm2/s (d). 500, 1500, 2000 s/mm2, the mean ADC value is 0.647 × 10− 3 mm2/s (e). f Postoperative pathology (haematoxylin and eosin, × 25). Tumour tissue showed papillary and mesh-like alignment. Tumour cells had a cubic and column-like shape with big, atypical, and deeply stained nuclei, which invaded the muscularis propria layer but did not extend beyond it

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