Combination Therapy With Erlotinib and Ramucirumab in a Patient With Epidermal Growth Factor Receptor Mutation Positive Lung Adenocarcinoma and Interstitial Pneumonia: A Case Report.

Interstitial pneumonia often acts as a barrier to lung cancer treatment. We report the case of a 79-year-old man who was diagnosed with epidermal growth factor receptor (EGFR) mutation positive lung adenocarcinoma (T2aN0M0, stage ⅠB, EGFR exon 19 deletion), and was positive for anti-aminoacyl-tRNA synthetase antibodies with interstitial pneumonia. Metastasis in the right seventh rib was detected three months after surgical resection and radiation therapy was initiated.