Hybrid Endoscopic Submucosal Dissection for Isolated Gastric Metastasis of Renal Cell Carcinoma.

Metastasis to the stomach is a rare occurrence, especially from renal cell carcinoma (RCC). We report a case of a 76-year-old man with a history of RCC, in remission for 11 years postnephrectomy, who presented with gastrointestinal symptoms, was found to have a 2 cm gastric mass confirmed as metastatic RCC. Endoscopic submucosal dissection was attempted, but due to the hypervascular nature of the mass, a hybrid endoscopic submucosal dissection was performed, achieving complete resection. Follow-up at 7 months showed no recurrence, highlighting the potential for endoscopic treatment options for isolated gastric metastasis, despite the lack of specific guidelines.