Figure 5: A 46-year-old female patient with mucinous adenocarcinoma, staged T3 N0. MRI of. (a) sagittal T2, (b and c) axial. T1, and axial T1 postcontrast fat saturation showing irregular mural tumefaction starting with cranial extension. (red arrowhead in a). The lesion involved the full thickness of the rectum together with loss of serosal outline definition and anterior extension of the tumefaction into the mesorectum fat planes and reaching as far as its anterior limit. (blue arrow in b). The nearby ileal loops appear amalgamated with loss of the mesenteric fat planes. (blue arrow in c).