EGFR mutation
A genetic mutation in some cancers (especially lung) that drives targeted therapy choice.
EGFR (epidermal growth factor receptor) mutations are common in non-small-cell lung cancer, especially in non-smokers. EGFR-mutated cancers respond to targeted oral therapies (osimertinib, erlotinib).
What this means for you: lung cancer should be EGFR-tested. Targeted oral therapy is often more effective than IV chemotherapy in EGFR-positive disease.
What a term means for you depends on your own reports. Ask your treating doctor, or send your reports for a free review.