Figure 2. An example of smooth surface feature and central barium fleck. A 0.8 cm cancer with deep invasion in the sigmoid colon. There is a smooth protrusion with an obvious barium fleck in the centre.
Figure 2. An example of smooth surface feature and central barium fleck. A 0.8 cm cancer with deep invasion in the sigmoid colon. There is a smooth protrusion with an obvious barium fleck in the centre.