True pseudomyxoma peritonei is caused by:: (A) Cystadenoma of the appendix, (B) Mucinous adenocarcinoma, (C) Colorectal mucinous cancer, (D) Ovarian malignancy
Answer is A. In reality the pseudomyxoma peritonei or "jelly belly" probably represents mucinous ascites, in association with a cystadenoma of the appendix (resulting in true PMP); to frank mucinous adenocarcinoma. Additionally intestinal mucinous tumours, paicularly colorectal cancers, or any mucinous neoplasm may present with clinical, radiological and pathological features resembling pseudomyxoma peritonei. Ref: World J Gastrointest Oncol 2010 January 15; 2(1): 44-50.