PMC5279079_01
Upper gastrointestinal series shows an abrupt cutoff of the third portion of the duodenum (white arrow) and dilatations of the first and second portions of the duodenum.
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F1
The results of the upper gastrointestinal radiography revealed esophageal reflux disease and possible gastritis; hence, SMA oppression syndrome (descending part of duodenal dilation, the contrast agent blocked through the tract, formation characteristic of penholder oppression) was considered (Fig. 1).