NSCLC often produces no symptoms until the disease is well advanced. As a result, about half of patients have distant spread of the disease at initial diagnosis. In 23% of patients, localized disease is present, and 22% of patients have regional metastasis.
Learn more about the signs and symptoms of NSCLC.
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Cite this: Daniel S. Schwartz. Fast Five Quiz: Non–Small Cell Lung Cancer (NSCLC) and the Epidermal Growth Factor Receptor Gene (EGFR) - Medscape - Nov 30, 2021.