Pathological evaluation of gastrointestinal endoscopic submucosal dissection materials based on Japanese guidelines

Figure 2 Cutting. A: General cutting of endoscopic submucosal dissection material. The final glass slide is of the reversed section of the solid line. Therefore, it is recommended that the tumor area should not be included in the portion of the dotted line; B: Cutting of endoscopic submucosal dissection material with a tumor close to the cut margin. Endoscopic submucosal dissection specimen should be cut in parallel sections which are perpendicular to the tangent of the closest margin.