Fig. 5From: Analysis of key clinical features for achieving complete remission in stage III and IV non-small cell lung cancer patientsCytological findings in a stage IV patient with complete remission (CR), shown in Fig. 4a-g. Carcinoma cells were confirmed by Papanicolaou staining of pericardial effusion (a, b). This carcinoma was a very aggressive type, based on the presence of numerous mitotic cells (b). Carcinoma cells stained positive for Ber-EP4 (c), indicating these cells to be adenocarcinoma, not mesotheliomaBack to article page