Figure 3.

Microscopic images of rectal tumour tissues stained with Masson’s trichrome from representative patients in the low-risk (Pat. #1, #3, #5) and high-risk (Pat. #2, #4, #6) groups. Collagen fibbers was stained blue/green. Scale bars equal 40 μm. Pat.1 and Pat.2 are the same patients as shown in Figure 1.