Fig. 2From: A case of acinar cell carcinoma originating from the accessory papilla of the duodenumUpper gastrointestinal endoscopy. A The tumor (white triangles) was located on the slightly oral side of Vater’s papilla (white arrow). B A submucosal tumor-like lesion with a central concavity was observed in the descending part of the duodenumBack to article page