Clinical characteristics and surgical treatment of schwannomas of the esophagus and stomach: A case series and systematic review

Figure 1 Immunohistochemistry and macroscopic images. A: The immunohistochemistry was diffusely positive for S100 (in the nucleus and cytoplasm) in the proliferative cells; which confirms its histomorphogenesis of the cells of schwann. This image corresponds to the esophagic schwannoma resected at our institute; B: Macroscopic image of the esophageal schwannoma.

Figure 2 Nulcear palisading around fibrillary process (verocay bodies) is often seen in cellular areas. This image corresponds to the esophagic schwannoma resected at our institute.

Figure 3 Flowchart.

Figure 4 Resection of a gastric schwannoma. A: Tumor of approximately 10 cm; B: Wedge resection by linear cutting stapler of the greater gastric curvature.