DOI: 10.1102/1470-7330.2013.0003 REVIEW Mucinous neoplasms of the appendix: a current comprehensive clinicopathologic and imaging review

Mucinous neoplasms of the appendix are a heterogeneous group of neoplasms ranging from simple mucoceles to complex pseudomyxoma peritonei. Considerable controversy exists on their pathologic classification and nomencla-ture. Clear understanding of the histopathologic diversity of these neoplasms helps in establishing proper communi-cation between the radiologist, the pathologist and the surgeon. In this article, we present a brief discussion of the current taxonomy and nomenclature of mucinous neoplasms of the appendix followed by a review of their imaging features. Important points including the significance of identifying extra-appendiceal mucin at imaging, the new classification of pseudomyxoma peritonei into low- and high-grade varieties and the significance of simultaneous ovarian and appendiceal neoplasms are highlighted