2021 Volume 99 Issue 1 Pages 91-93
A 69-year-old man with renal cell carcinoma developed melena and hematemesis and was seen by our department. Esophagogastroduodenoscopy revealed a protruding lesion on the anterior wall of the upper gastric body. Flowing hemorrhage was observed and was stopped by argon plasma coagulation. Later, we performed a biopsy, which was found to be gastric metastasis of renal cell carcinoma. We performed endoscopic mucosal resection to control hemorrhage, and the gastrointestinal hemorrhage improved.
Metastatic gastric tumors are extremely rare, and the major primary tumors are malignant melanoma, breast cancer, esophageal cancer, and lung cancer. Metastatic gastric tumors are often submucosal tumor-like, while gastric metastases of renal cell carcinoma are often polyp-like. If complete resection is possible, metastatic resection is expected to improve survival. Endoscopic resection should be considered for gastric metastasis of renal cell carcinoma.
