Lung Cancer
For lung cancer, the entire journey from diagnosis to treatment — combining surgery, radiotherapy, chemotherapy, targeted therapy, and immunotherapy — is coordinated across our accredited network.
What is lung cancer?
Lung cancer arises when cells in the lungs grow abnormally and out of control. The tumor tissue impairs breathing and, in later stages, can spread to lymph nodes and other organs.
It is one of the leading causes of cancer death worldwide. When caught early, treatment success rises markedly, so screening matters for people at risk.
What are the types of lung cancer?
Lung cancer is divided into two main groups by cell structure:
Causes and risk factors
The most important cause is smoking and tobacco use, but it can also occur in never-smokers:
- Cigarette, cigar, pipe, and hookah use
- Secondhand smoke
- Exposure to radon, asbestos, arsenic, and industrial chemicals
- Air pollution
- Family history and genetic predisposition
- Chronic lung diseases such as COPD
What are the symptoms of lung cancer?
Often no symptoms early on; complaints usually appear as the disease advances:
- A persistent cough that worsens over time
- Blood or rust-colored sputum
- Shortness of breath and wheezing
- Chest pain that worsens with breathing or coughing
- Hoarseness
- Unexplained weight loss and loss of appetite
- Constant fatigue
- Recurrent pneumonia or bronchitis
What are the stages of lung cancer?
Non-small cell lung cancer is generally assessed in four stages:
Small cell lung cancer is usually described as "limited" or "extensive" stage.
How is lung cancer diagnosed?
Diagnosis is confirmed with imaging and tissue sampling after history and exam:
- Bronchoscopy to inspect the airways and take samples
- Needle biopsy with pathological examination
- Molecular and genetic tests (EGFR, ALK, PD-L1) for targeted therapy
- Sputum cytology
Imaging methods in lung cancer
Main methods used for diagnosis and staging:
- Chest X-ray
- Low-dose CT — screening and diagnosis
- PET-CT to assess spread
- Brain MRI (metastasis screening)
Lung cancer treatment methods
Treatment is personalized by type, stage, and molecular features:
Every patient and every tumor is different
No single treatment is right for everyone; the best plan depends on your exact diagnosis, stage, and tumor characteristics. At National Cancer Alliance, we arrange a free second opinion from board-certified oncologists to review your case.
Prognosis and survival rates
Survival in lung cancer depends heavily on stage. In early-stage disease confined to the lung, 5-year survival can reach about 60%, while it drops significantly with distant metastasis.
In recent years, targeted therapies and immunotherapy have improved survival and quality of life even in advanced disease. Early diagnosis is the single biggest factor in prognosis.
How to reduce lung cancer risk
Measures that help lower risk:
- Quitting tobacco; never starting
- Avoiding cigarette smoke and secondhand smoke
- Protection against asbestos, radon, and chemicals at work
- Low-dose CT screening for high-risk individuals
- A balanced diet and regular physical activity
Frequently asked questions
Is lung cancer treatable?
Yes, especially in early stages where success is high. Even in advanced disease, modern combinations can control the cancer.
I don't smoke — can I still get it?
Yes. Radon, asbestos, air pollution, and genetic predisposition are also risk factors.
How soon should treatment begin?
As soon as possible after staging and molecular tests. A second opinion usually returns within 3–5 business days.
Why is a second opinion important?
Treatment options evolve rapidly; an independent oncologist helps define the most current plan.
Ready for a plan built around you?
Start with a free, no-obligation second opinion from a board-certified oncologist. Have your case reviewed and every option explained clearly.
Get a FREE Second OpinionThis page provides general information about lung cancer; it is not a substitute for medical advice, diagnosis, or treatment. All treatments are provided by independent, accredited hospitals and licensed physicians. Your treatment decision should be made by a qualified physician based on your individual situation.