Fig. 4
From: Adenocarcinoma arising in sigmoid colon neovagina 53 years after construction
Pathological examination of resected specimen. a Tumor located in the neovagina constructed with ectopic sigmoid colon (white arrow heads). b A tan-colored papillary elevated tumor was observed in the neovagina. c Low magnification of the tumor (H&E, original magnification × 20). d At higher magnification, a well-differentiated tubular adenocarcinoma was observed in the surface area of the tumor (H&E, original magnification × 100). e Mucinous adenocarcinoma component in the invasive portion (H&E, original magnification × 100). f Immunohistochemistry revealed no p16-overexpressing tumor cells (original magnification × 40)