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. 2019 Feb;9(2):238–246. doi: 10.21037/qims.2018.12.10

Figure 2.

Figure 2

MRI scans of a 62-year-old man diagnosed with rectal adenocarcinoma (T3N1bM0) without KRAS mutation. (A) T2-weighted axial and (B) sagittal images show an ulcero-infiltrative mass (arrows) in the mid rectum. The ratio of axial to longitudinal tumor length was 0.20 (1.5 cm/7.5 cm). (C) An axial contrast-enhanced fat-suppressed T1-weighted image also shows the ulcero-infiltrative mass (dotted line) with moderate enhancement. The relative contrast enhancement ratio was 1.48. (D) On an ADC map (b factor, 1,000 s/mm2), the ADC value of the tumor (dotted line) was 0.974×10−3 mm2/s. ADC, apparent diffusion coefficient.