Gastric schwannoma treated by endoscopic full-thickness resection and endoscopic purse-string suture: A case report

Figure 3 Pathological analysis and immunohistochemical staining. A: Hematoxylin and eosin staining revealed spindle cell tumors with mild cells, mitotic figures 1-2/50 high-power field, local inflammatory cell infiltration, and no necrosis. Combined with immunohistochemistry and gene detection results, the results were consistent with schwannoma; B-G: Immunohistochemical staining of the gastric mass confirmed a gastric schwannoma through positive staining for S-100 protein (B), whereas CD117 (C), CD34 (D), α-smooth muscle actin (E), desmin (F), and DOG1 (G) were negative.