A 5-year-old child is brought to the emergency room with massive, painless bleeding from the rectum. Colonoscopy fails to demonstrate a lesion in the colon or anus. Upper endoscopy fails to demonstrate esophagitis, gastric ulcer, or duodenal ulcer. A [99mTc] technetium scan demonstrates an abnormality in the lower half of the abdomen. Failure of a normal developmental process involving which of the following structures is the most likely cause of this child's bleeding?
A. Appendix
B. Cecum
C. Duodenum
D. Ileum
E. Jejunum
Answer
Category:
Anatomy MCQs
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