Amebic liver abscess

This is a 35-years old man who presented with acute pain in the right hypochondrium as well as in the right iliac fossa. The CT (Fig. 1) shows a hypodense lesion showing a thin, irregular wall (arrowhead), with surrounding parenchymal edema (arrow). This appearance is pathognomonic of an amebic liver abscess. The image through the right iliac fossa (Fig. 2) shows marked cecal wall thickening, representing typhlitis, which often is found in acute settings.