Fig. 3.
False-positive case of pancreatic cancer in transition of head and body, with a size of 55 mm. (A) This case was diagnosed as type 2. The pancreatic tumor (arrowhead) contacting the superior mesenteric vein (SMV: arrow) with the loss of the hyperechoic vessel layer, as observed by endoscopic ultrasonography. (B) Computed tomography image showing pancreatic tumor (arrowhead) contact SMV (arrow). (C) Pathological evaluation showing a distance of 742 µm between the tumor and SMV (hematoxylin-eosin stain, ×20). (D) No invasion to vessel was verified using Elastica van Gieson staining (×40).