Adenocarcinoma is the most common type of cancer.

Adenocarcinoma is a pathological type of malignant tumor. It is a malignant tumor derived from glandular epithelium. It can also occur in different parts of the body, including respiratory system, digestive system and reproductive system. The specific cause of the disease is uncertain, and smoking, air pollution and dietary factors, family genetic susceptibility are all related. This type of tumor is relatively sensitive to chemotherapy, and surgery should be the first choice after diagnosis in most cases. For patients who cannot be operated at stages, or whose stages after surgery are not early, chemotherapy should be considered for treatment.