HEALTHY LUNG
LUNG CANCER
Lung cancer
Lung cancer is one of the most common and deadliest cancers worldwide. It typically begins in the lungs and is strongly linked to smoking and other environmental factors.
Causes
The exact cause of lung cancer is not fully known. Lung cancer develops when lung cells mutate in their DNA, causing uncontrolled growth and division. These abnormal cells accumulate to form tumors that can invade and spread to other parts of the body.
Signs and symptoms of Lung Cancer
- Persistent cough
- Coughing up blood
- Shortness of breath
- Chest pain
- Hoarseness
- Unexplained weight loss
- Fatigue
Types of Lung cancer
Lung cancer is classified based on the type of cell involved, which helps guide treatment. Types include:
Non-small cell lung cancer (NSCLC)
The most common type, includes subtypes like adenocarcinoma and squamous cell carcinoma.
Small cell lung cancer (SCLC)
More aggressive and rapidly growing, often linked to smoking.
