Review Article © Pol J Radiol, 2011; 76(3): 38-48 Figure 11. Axial CT scans of the abdomen – consecutive phases of dynamic CT examination. Strongly enhanced metastatic nodules are best visible in the arterial phase. Figure 12. Axial CT scans of the abdomen – consecutive phases of dynamic CT examination. Well-enhancing metastatic nodules with areas of necrosis, located in the liver are best seen in the venous phase of the study. Figure 13. Axial CT scans of the abdomen. Typical presentation of larger GIST metastases of heterogenous density due to the presence of hypodense areas of necrosis. Figure 14. Axial CT scans of the abdomen – consecutive phases of dynamic CT examination. Unusual, because poorly enhancing metastatic nodules are best seen in the venous phase. 42