Figure 1: H and E staining and immunohistochemical levels of Ki-67, P16, and carcinoembryonic antigen in villoglandular adenocarcinoma tissues. (a) H and E staining of villoglandular adenocarcinoma tissues. (b) Ki-67 was highly expressed in villoglandular adenocarcinoma tissues. (c) P16 was highly expressed in villoglandular adenocarcinoma tissues. (d) Carcinoembryonic antigen was highly expressed in villoglandular adenocarcinoma tissues