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Clinical History:
A 57-year-old woman attended the radiology department for a follow-up computed tomography (CT) study. She had sigmoid colectomy performed 5 years ago for stage I colon cancer. Her serum carcinoembryonic antigen (CEA) level was normal.
Non-contrast CT - axial
CT with contrast - axial
CT with contrast - coronal
CT with contrast - sagittal