case_images: PMC3999580_01
case_images: CT scan of the abdomen showing a duodenal giant mass spreading from the bulb to the horizontal part of the duodenum (arrows).
case_images: crg-0008-0089-g01.jpg
case_images: PMC3999580_01_crg-0008-0089-g01.jpg
case_images: F1
case_images: Computed tomography (CT) of the abdomen revealed a duodenal giant mass spreading from the bulb to the horizontal part of the duodenum (fig. 1).
case_images: a Upper gastrointestinal radiography with Gastrografin revealed smooth taper shape of the duodenum. b A villous tumor was observed in the duodenal bulb endoscopically, but the pyloric ring was not confirmable.
case_images: crg-0008-0089-g02.jpg
case_images: PMC3999580_01_crg-0008-0089-g02.jpg
case_images: F2
case_images: No tumor was clearly detected (fig. 2a). A villous tumor was observed in the duodenal bulb endoscopically, but the pyloric ring was not confirmable (fig. 2b).
case_images: Gastroduodenal intussusception as found at operation.
case_images: crg-0008-0089-g03.jpg
case_images: PMC3999580_01_crg-0008-0089-g03.jpg
case_images: F3
case_images: About one third of the stomach was invaginated through the pylorus into the duodenum (fig. 3).