Gefitinib-Sensitizing Mutations in Esophageal Carcinoma

Abstract
The sensitivity of lung cancer to gefitinib has been found to be associated with mutations in the tyrosine kinase domain of epidermal growth factor receptor (EGFR),1-3 yet similar observations are not available for other solid tumors.4 We investigated whether gefitinib-sensitizing mutations in the EGFR gene were present in human esophageal tumors.