Metastatic Renal Cell Carcinoma Presenting as Gastrointestinal Bleeding.

Approximately 85% of kidney tumors are renal cell carcinoma (RCC). RCC commonly metastasizes to the lung, bone, and lymph nodes; however, gastric metastasis is exceedingly rare. We present an 86-year-old woman with left-sided RCC with known metastatic disease to the lungs, lymph nodes, and bone, who presented with acute blood loss anemia. After hemodynamic stabilization, esophagogastroduodenoscopy revealed a large infiltrative, polypoid, and ulcerated polyp in the gastric body. After complete polypectomy, histological examination demonstrated gastric mucosa ulcerated by clear-cell carcinoma, compatible with metastatic RCC. Our patient was successfully treated with palliative radiation to the gastric body.