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Fig. 6B —61-year-old man with rectal cancer. Adjacent axial MR images
show multiple areas of stranding extending radially from tumor edge. Some
stranding is simply desmoplasia, defined by fine low-signal-intensity spikes
evident in C. However, at least one example of more irregular nodular
intermediate-signal-intensity stranding (arrow, B) represents
MRI extramural vascular invasion score 3.
