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An 80-year-old woman presented with a three-day history of passage of bright red blood from the rectum. She was afebrile and had a blood pressure of 70/52 mm Hg. The white-cell count was 10,100 per cubic millimeter, and the hematocrit was 32.5 percent. An abdominal radiograph showed minimal ileus. A colonoscopy revealed blood in the colon and a round, smooth, violaceous lesion in the ascending colon that nearly obstructed the colonic lumen and that could not be passed by the colonoscope. A single computed tomographic image of the abdomen showed two views of an intussusception. In a cross-sectional view (arrowhead), . . . [Full Text of this Article] |
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