What Is Lung Cancer? | Types of Lung Cancer

Lung cancer is a type of cancer that starts in the lungs. It occurs when cells in the lungs undergo abnormal changes and grow uncontrollably, forming tumors. These tumors can interfere with the normal function of the lungs, making it difficult for them to provide oxygen to the bloodstream. Lung cancer is one of the leading causes of cancer-related deaths worldwide.

There are two main types of lung cancer:

Non-small cell lung cancer (NSCLC): This is the most common type, accounting for about 85% of all lung cancer cases. NSCLC includes several subtypes, such as adenocarcinoma, squamous cell carcinoma, and large cell carcinoma. Each subtype has distinct characteristics and may require different treatment approaches.

Small cell lung cancer (SCLC): This type accounts for about 10-15% of all lung cancer cases. It tends to grow and spread more quickly than NSCLC and is often associated with a history of smoking. SCLC is less common than NSCLC but is usually more aggressive and may require more intensive treatment.

In addition to these main types, there are other rare types of lung cancer, such as carcinoid tumors and sarcomatoid carcinoma.

Understanding the type of lung cancer is crucial for determining the most appropriate treatment plan, which may include surgery, chemotherapy, radiation therapy, targeted therapy, immunotherapy, or a combination of these approaches. Early detection and timely treatment can improve the prognosis and increase the chances of successful outcomes for individuals with lung cancer.