Wiley Open Access, Thoracic Cancer, 2(6), p. 224-226, 2015
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We report a case showing the long-term clinical benefit of the continued use of gefitinib in a patient with asymptomatic progression of lung adenocarcinoma harboring an exon 19 deletion of the epidermal growth factor receptor gene. Although follow-up studies showed smoldering progression of metastatic lesions, continued treatment with gefitinib controlled pulmonary adenocarcinoma for more than six years.