Rare synchronous colorectal carcinoma with three pathological subtypes: A case report and review of the literature

Figure 4 Pathological diagnosis (magnification 10 × 10). A: Mucinous adenocarcinoma in the rectum. The mass invaded into the muscular layer; B: Moderately differentiated adenocarcinoma in the descending colon. The mass invaded into the muscular layer; C: Well-differentiated adenocarcinoma in the ascending colon. The mass invaded the submucosal layer.