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Wednesday, September 28, 2016

Q: "String sign" can be seen in which of the following diseases?

A) Esophageal Achalasia
B) Ulcerative Colitis
C) Crohn Disease
D) Perforated duodenal ulcer
E) Necrotizing Pancreatitis

Answer: C

Crohn's Disease causes severe ulceration and consequently causes spasm of the terminal ileum. If contrast is given, terminal ileum appears like a string. Though it can be seen in other similar conditions but is considered to be the hallmark of Crohn disease.



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