Gastric schwannoma treated by endoscopic full-thickness resection and endoscopic purse-string suture: A case report
Zhi-Yu Lu, Dun-Yong Zhao
Abstract
BACKGROUND: Schwannomas, also known as neurinomas, are tumors that derive from Schwann cells. Gastrointestinal schwannomas are extremely rare, but the stomach is the most common site. Gastric schwannomas are usually asymptomatic. Endoscopy and imaging modalities might offer useful preliminary diagnostic information. However, to diagnose schwannoma, the immunohistochemical positivity for S-100 protein is essential, whereas CD117, CD34, SMA, desmin, and DOG-1 are negative. CASE SUMMARY: genes. Postoperative follow-up revealed that the patient recovered well. CONCLUSION: Immunohistochemical staining is essential for the diagnosis of schwannoma. Endoscopic full-thickness resection is an effective treatment method for gastric schwannoma.