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Dramatic therapeutic effects of molecularly targeted therapies demonstrated in serial axial chest computed tomography images. (a) Radiographic response to epidermal growth factor receptor (EGFR) inhibition in patient with EGFR mutant non-small cell lung cancer (NSCLC) after 2 mo of treatment. (b) Ongoing radiographic response to anaplastic lymphoma kinase (ALK) inhibition in patient with ALK rearranged NSCLC after 6 mo of treatment.
