Lung Cancer

What Is Lung Cancer?

Lung cancer is a disease caused by uncontrolled growth of abnormal cells in the lungs, leading to tumor formation that may spread to other parts of the body. The lungs play a vital role in breathing and oxygen exchange.

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Prevalence

Lung cancer is one of the most common cancers worldwide and the leading cause of cancer-related deaths. While smoking is the main risk factor, non-smokers can also develop lung cancer.

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Causes and Risk Factors

• Smoking and secondhand smoke

• Radon gas exposure

• Occupational carcinogens

• Previous chest radiation therapy

• Family history of lung cancer

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Symptoms of Lung Cancer

Early stages may be asymptomatic. As the disease progresses, symptoms may include:

• Persistent or worsening cough

• Chest pain

• Shortness of breath

• Coughing up blood

• Hoarseness

• Unexplained weight loss

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Types of Lung Cancer

• Small Cell Lung Cancer (SCLC)

• Non-Small Cell Lung Cancer (NSCLC)

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Diagnosis

Diagnosis may involve:

• Imaging tests (X-ray, CT scan)

• Sputum cytology

• Lung biopsy

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Treatment Options

Treatment depends on the cancer type and stage and may include:

• Surgery

• Chemotherapy

• Radiation therapy

• Targeted therapy

• Immunotherapy

• Palliative care

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Prevention

• Avoid smoking and quit if you smoke

• Reduce exposure to secondhand smoke

• Maintain a healthy lifestyle

• Early screening for high-risk individuals

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Conclusion

Early detection of lung cancer significantly improves outcomes. Smoking cessation remains the most effective prevention strategy.

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🔍  Description 

Lung cancer is a leading cause of cancer deaths worldwide. Learn about its symptoms, causes, diagnosis, treatment, and prevention in a clear medical guide.

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🔑  Keywords

Lung cancer, lung cancer symptoms, causes of lung cancer, lung cancer treatment, lung cancer diagnosis, smoking and lung cancer.