Important considerations when contemplating endoscopic resection of undifferentiated-type early gastric cancer

Figure 3 Clinical example of signet ring cell carcinoma exhibiting expansive intramucosal spread. A: An endoscopic image of early gastric cancer (EGC) showing a depressed lesion located in the posterior wall of the lower body. Endoscopically, the surrounding mucosa did not exhibit atrophy or intestinal metaplasia; B: Pathological findings after endoscopic resection (× 40). SRC tumor cells were superficially exposed in a mucosal region and were well-demarcated (arrow). Taken with permission from Gut Liver 2015; 9: 720-726[40].