PMC2998668_01
(a) Upper gastrointestinal endoscopy showing duodenal obstruction with friable duodenal mucosa; and (b) resolution of duodenal obstruction with internal fistula on duodenal wall.
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Upper gastrointestinal endoscopy showed narrowing of duodenal lumen beyond the second part due to extraluminal compression of C-loop of duodenum [Figure 1a]. His NG aspirates came down and repeat endoscopy showed complete disappearance of mass effect in duodenum with an opening in the medial wall of the second part of the duodenum suggesting spontaneous duodenal fistulization of pseudocyst of pancreas [Figure 1b].