Fig. 3From: Analysis of key clinical features for achieving complete remission in stage III and IV non-small cell lung cancer patientsPathological findings in the stage III patient with complete remission (CR), shown in Fig. 2. Cytology by bronchoscopy was class V according to the Papanicolaou staining (a). Histological examinations confirmed the diagnosis of adenocarcinoma, based on hematoxylin and eosin staining (b) and immunohistochemical staining for CEA (c) and TTF-1 (d). The carcinoma cells were positive for CEA (c) and TTF-1 (d)Back to article page