The definitive pathological examination revealed a mucinous cystoadenocarcinoma of the appendix invading the caecal wall with metastasis of the anterior wall of the bladder (A). Adjacent to the tumour in the intestinal mucosa foci of high grade dysplasia/adenocarcinoma in situ were also identified thus confirming the appendiceal origin of the primary tumour (B). Objective magnification: 20×.
Taverna et al. BMC Cancer 2010 10:62 doi:10.1186/1471-2407-10-62