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Fig. 13 80-year-old man with small-bowel obstruction secondary to
adenocarcinoma of large bowel. Coronal reformatted 2-mm-thick CT view of
abdomen reveals small-bowel obstruction is caused by thick annular
constricting mass lesion involving hepatic flexure of large colon (thin
arrows) resulting in proximal dilatation of cecum (thick arrow)
and small bowel (arrowheads). Pathology revealed colonic
adenocarcinoma.