Metastatic adenocarcinoma is already quite serious. Metastatic adenocarcinoma is more malignant and is generally less sensitive to chemotherapy, radiotherapy, and sensitivity, and if metastatic adenocarcinoma occurs, the survival rate of 3 years is about 40%. Depending on the treatment, the survival time is different. If we can actively treat metastatic adenocarcinoma with combination of chemotherapy, radiotherapy, immunotherapy, targeted drug therapy, biological therapy, stem cell transplantation, etc., as long as we can control the growth, development and spread of the tumor, we can reduce the symptoms and prolong the life span, and the patient can survive with the tumor, and the possibility of survival for more than 3 years or 5 years is possible. Without active treatment, the survival time of metastatic adenocarcinoma is about 0.5-1 year.