PMC3364087_01
CT image from a previous hospital shows diffusely swollen pancreas and slightly dilated main pancreatic duct (arrowhead).
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F1
CT examination at the previous hospital had revealed a diffusely swollen pancreas along with slightly dilated main pancreatic duct (fig. 1).
Subsequent contrast-enhanced abdominal CT shows 'target' appearance in the region of the duodenum confirming the diagnosis of duodenoduodenal intussusception (a). Coronal multiplanar reformatted image shows duodenoduodenal intussusception (b).
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F2
However, a 'target' appearing in a region of the duodenum confirmed a diagnosis of duodenoduodenal intussusception (fig. 2).
a Upper gastrointestinal endoscopy findings show an elevated red and finely granular lesion from the oral side of the ampulla of Vater (arrowhead). b Endoscopic ultrasonography shows a highly vascularized tumor originating from the mucosa (arrow: feeding artery and drainage vessels).
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F3
Upper gastrointestinal endoscopy revealed an elevated 3-cm tumor near the ampulla of Vater in the second part of the duodenum (fig. 3a). Endoscopic ultrasonography showed the 31-mm low-echoic and well-vascularized tumor originating from the mucosa (fig. 3b).