Three cases of jejunal tumors detected by standard upper gastrointestinal endoscopy: A case series

Figure 1 Conventional upper gastrointestinal endoscopy findings. A and B: A dark discoloration is seen in the area which suspected to the third part of the duodenum; C: There is an approximately 2.5 cm central depressed mass in the transitional zone with mucosal color; D: The mass shows a smooth surface and focal bleeding with exposed vessels.