Laparoscopic‐endoscopic cooperative surgery for a gastric duplication cyst in the prepyloric region to preserve the pylorus ring in a child: A case report

Laparoscopic-endoscopic cooperative surgery (LECS) has revolutionized the surgical treatment of submucosal gastric tumors by minimizing resection of the normal gastric wall to avoid deformity of the stomach. We present our experience with a child in whom we successfully resected a gastric duplication cyst in the prepyloric region and preserved the pylorus ring by performing LECS.