Gradual Colonic Impaction of a Chicken Bone Associated with Inflammatory Pseudotumor Formation and Nonocclusive Colon Ischemia

Figure 1

Oblique CT images before ((a), (b)) and after contrast medium administration in the arterial phase ((c), (d)), portal phase ((e), (f)), and delayed phase ((g), (h)) showing the foreign body and perifocal contrast-enhancement. In the lower images ((b), (d), (f), and (h)) a density color map has been superimposed using Advantage Workstation 4.5 (GE) to better depict the increase of HU in the different phases.