Fig. 2From: Giant ovarian tumor with colorectal cancer: suggestion concerning the need for colonoscopy screening in cases with large ovarian tumor—a report of three casesA Enhanced CT revealed a cystic ovarian mass with an irregularly shaped septum and a solid component measuring 34 × 28 cm. B Colonoscopy showed type 2 cecal cancer. C A histopathological evaluation of the ovarian tumor showed adenocarcinoma consisting of atypical columnar epithelium with severe necrosis (HE 200×). Immunohistochemistry staining showed that the ovarian tumor was CK7-negative (D), CK20-positive (E), and CDX2-positive (F)Back to article page