Longest survival time of lung cancer with brain metastasis

The incidence of brain metastasis of lung cancer is relatively high, 20%-50%, which is the common reason for failure of lung cancer treatment. Patients with brain metastasis begin with brain symptoms, and often die within 3 months if they are not actively treated. The specific survival period of patients depends on the specific conditions of the disease and the patient's own physical fitness. Due to the specific conditions of the disease, the patient's own physical fitness, and the treatment methods used vary from person to person, so the survival period cannot be generalized. At present, there are known patients with lung cancer brain metastasis survival more than 5 years. But the longest survival time, there is no exact statistics.