What Is EGFR-positive Lung Cancer and How Is It Treated?

2Forms of Lung Cancer Associated With EGFR Mutation

Lung cancer can be categorized into two main forms: non-small cell lung cancer and small cell lung cancer. Non-small cell lung cancer accounts for around 80 to 85 percent of all reported lung cancer cases. It can be further divided into three subtypes:

– Squamous cell carcinoma: This subtype accounts for around 30 to 35 percent of non-small cell lung cancer cases. It often starts around the bronchial tubes.

– Adenocarcinomas: This subtype accounts for around 60 percent of non-small cell lung cancer cases. It tends to affect the outer part of the lung.

– Large cell carcinoma: This is a rare form that may begin anywhere in the lungs. However, it may spread more quickly than the other subtypes.

It is estimated that more than 32 percent of non-small cell lung cancer cases around the world involve EGFR mutations. [3]

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