A Case in Which a Distal Pancreatectomy Was Performed for Pancreatic Metastasis of Renal Cell Carcinoma after Nephrectomy, and a Total Pancreatectomy Was Performed for Residual Pancreatic Recurrence

We reported a case in which a pancreatic resection was performed for pancreatic metastasis of renal cell carcinoma 24 years after nephrectomy, and a residual pancreatectomy was performed 4 years later for residual pancreatic recurrence. The patient was a 72-year-old. In 1991, he underwent right nephrectomy for right renal cell carcinoma. During follow-up, in 2015, mass lesions were noted in the pancreatic tail and distal pancreatectomy was performed on suspicion of pancreatic neuroendocrine tumor(NET). Pathological examination diagnosed metastasis of renal cell carcinoma. In 2019, mass lesions were noted in the residual pancreas and total pancreatectomy was performed. Pathological examination diagnosed metastasis of renal cell carcinoma. There was 5 cases in Japan, including an our case, in which pancreatectomy was performed again after pancreatectomy for pancreatic metastasis of renal cancer, and the average time until the first pancreatic metastasis was pointed out was 11.8 years, and the average time until pancreatic recurrence was 9.4 years. Pancreatic metastasis of renal cell carcinoma shows heterochronic and multiple metastasis occurs, requiring long-team follow-up. When determining the extent of resection, it was suggested that the minimum number of repetitions necessary may lead to a long-term prognosis, taking into account the patient's age, background.