(B) Immunohistochemical staining revealed the specimen was positive for thyroid transcription element-1, suggesting that these were metastases from the primary lung adenocarcinoma. Liver metastasis was detected in December 2011, and the patient was administered chemotherapy with pemetrexed, gefitinib, gemcitabine, and vinorelbine, but these regimens almost all proved to be ineffective. were recognized by magnetic resonance … Continue reading (B) Immunohistochemical staining revealed the specimen was positive for thyroid transcription element-1, suggesting that these were metastases from the primary lung adenocarcinoma