Fig. 2
From: Predictive value of lesion morphology in rectal cancer based on MRI before surgery
Diagrams of NP, CS, IN and PRI
A: Multiple NPs (green arrows) appeared at the margin of rectal primary mass
B: Multiple CSs (green arrows) appeared on the left margin of rectal primary mass
C: An IN (green arrow) appeared next to the right posterior aspect of the rectal cancer mass, with unsmooth marginal lobing and poor demarcation from the adjacent CS (red arrows)
D: The peritoneal reflection invaded by the rectal cancer mass was thickened irregularly (green arrow), and the mass breaked through the peritoneal reflection to form NP (red arrow); a vein at the left margin of the rectal cancer mass was invaded (black arrow), the lumen widens and moderate signal tumor tissue appeared in the lumen