149

Published on 04/05/2015 by admin

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Last modified 04/05/2015

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CASE 149

image

History: A 68-year-old man with 5 months of constipation now presents with 3 days of acute lower abdominal pain and distention.

1. What should be included in the differential diagnosis of the imaging finding shown in Figure A? (Choose all that apply.)

A. Small bowel obstruction

B. Large bowel obstruction

C. Diffuse adynamic ileus

D. Jejunal dysgenesis

E. Celiac disease

2. Which of the following complications of colon cancer is most frequently observed?

A. Perforation

B. Intussusception

C. Bowel obstruction

D. Abscess formation

3. Sigmoid diverticulitis and carcinoma can appear similar on CT scan. Which feature favors a diagnosis of carcinoma?

A. Engorgement of pericolonic vessels

B. Fluid in the mesenteric root

C. Pericolic lymph nodes

D. Perforation

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