To the Editor: Mutations in the epidermal growth factor receptorgene (EGFR) occur in 10 to 20 percent of nonsmall-celllung cancers, specifically adenocarcinomas, and are associatedwith the response to EGFR tyrosine kinase inhibitors (erlotiniband gefitinib).1 However, the results of screening of small-celllung cancers for EGFR mutations have been negative.2 Thus, small-celllung cancers are not routinely tested for EGFR mutations, norhave they been systematically evaluated for responsiveness toEGFR tyrosine kinase inhibitors.
A 45-year-old woman who had never smoked and who had massesin the right lung, pleura, mediastinum, and frontal lobe was. . . [Full Text of this Article]
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