CASE 78
History: A 27-year-old man has a long history of constipation dating back to his infancy.
1. Which of the following should be included in the differential diagnosis of the imaging finding shown in the figures? (Choose all that apply.)
2. What is the pathologic basis of Hirschsprung’s disease?
A. A segment of colonic aperistalsis
B. A segment of submucosal fibrosis
C. A segment of persistent contraction of intramural smooth muscle
D. A segment of congenitally absent ganglion cells in the distal colon
3. What other conditions is most commonly seen with Hirschsprung’s disease?
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