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Magnification ×1000 in oil, 0.06 mm2 area, immunostaining with the anti-CD31 antibody. (A) High MVD in primary PDAT section. Small arrows indicate single red-stained microvessels. Big arrows indicate single microvessels with tumour cells in their lumen. (B) Low MVD in ANT section. Small arrows indicate immunostained endothelium of a large vessel; the big arrow indicates the lumen of the vessel. Scale bar corresponds to 150 µm.
