Abstract
BACKGROUND: Ovarian tumor metastasis to the stomach is uncommon. Clinical manifestations of metastasis to the stomach are variable and lack features. Gastric metastasis resembling a subepithelial tumor is unusual, making the diagnosis challenging. CASE PRESENTATION: Here, we reported a case of gastric metastasis from ovarian adenocarcinoma presenting as a subepithelial tumor diagnosed by endoscopic ultrasound-guided tissue acquisition. CONCLUSION: This case provides significant reference value and serves as a cautionary reminder for the diagnosis and management of gastric subepithelial tumors.