Lung adenocarcinoma isolated metastasizing to pancreas a case report and review

BACKGROUND: Lung cancers are prone to metastasis. It is commonly associated with metastases in the brain, bone, and liver.However, isolated pancreatic metastasis are extremely rare in lung cancer patients。CASE SUMMARY: A Chinese man underwent pulmonary lobectomy for adenocarcinrcinoma 6 years ago. He was referred to our department because that postoperative reexamination revealed space occupying lesions in the neck of the pancreas.Abdomen CT showed a space occupying lesions in the neck of the pan-creas.,and no abnormality was found in any other organ. Therefore, it was considered to pancreatic carcinoma. Pancreatectomy of the pancreatic body and tail, as well as splenectomy, were performed,and he was given four courses of pemetrexed and Carboplatin chemotherapy after one month of operation. Then the gefitinib was given. A year after surgery, the patient survived without tumor.CONCLUSION: Secondary pancreatic tumors are rare in clinical practice.To our knowledge, this is the first report of isolated pancreatic metastasis of lung cancer in China and it is the longer tumor-free survival in patients with isolated pancreatic metastasis of lung cancer.However,the value of surgical treatment for isolated metastasis of lung cancer needs further discussion.