Why is the 5-year survival rate of lung cancer patients so low?

Why is the 5-year survival rate of lung cancer patients so low?

1. The prognosis of lung cancer is closely related to the clinical stage. Since symptoms and signs appear late, 80% of patients have metastasis when they first visit the doctor. Due to the loss of surgical opportunities, the 5-year survival rate is only 16%. In contrast, the 5-year survival rate of stage I patients can reach 90%.

2. The reason why the cure rate of lung cancer is low is that it is easily ignored in the early stages. It may be due to the weak physical constitution, long-term smoking or industrial pollution.

What are the symptoms of brain metastasis from advanced lung cancer?

Once brain metastasis occurs in the late stage of lung cancer, the main symptoms are headache, vomiting, and papilledema. The metastatic lesions in the brain can cause edema in the surrounding area, leading to increased intracranial pressure, which can cause headaches, vomiting, and epileptic seizures, resulting in convulsions in the limbs.

Generally speaking, brain metastasis of lung cancer mostly manifests as headache, dizziness, nausea and vomiting.