A hypervascularized tumor was detected in a 65-year-old man who had underwent a nephrectomy for a right renal cell carcinoma at the age of 55 years. We diagnosed the tumor as a non-functioning pancreatic neuroendocrine tumor or a metastatic tumor from the renal cell carcinoma. We performed distal pancreatectomy with splenectomy and lymph node dissection. The tumor was histopathologically diagnosed as metastatic renal cell carcinoma.

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Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Universitat Politècnica de València, Universitat de València, València, Spain; Departamento de Química, Universitat Politècnica de València, Camino de Vera s/n 46022, Valencia, Spain; CIBER de Bioingeniería Biomateriales y Nanomedicina (CIBER-BBN), Instituto de Salud Carlos III, 28029, Madrid, Spain; Unidad Mixta UPV-CIPF de Investigación en Mecanismos de Enfermedades y Nanomedicina, Valencia, Universitat Politècnica de València, Centro de Investigación Príncipe Felipe, Avenida Eduardo Primo Yúfera, 3, 46012, Valencia, Spain; Unidad Mixta de Investigación en Nanomedicina y Sensores, Universitat Politècnica de València, Instituto de Investigación Sanitaria La Fe (IISLAFE), Avenida Fernando Abril Martorell, 106, 46026, Valencia, Spain.

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