We reserve the term "adenocarcinoma" for neoplasms characterized by invasive glands and or signet ring cells
Neoplasms characterized by dissecting mucin (with or without cells), but not invasive glands behave differently and are classified separately as
(see Differential Diagnosis at left or follow the links below)
Bosman FT, Carneiro F, Hruban RH, Thiese ND (Eds). WHO Classifiication of Tumors of the Digestive System, IARC, Lyon 2010
Pai RK, Longacre TA. Appendiceal mucinous tumors and pseudomyxoma peritonei: histologic features, diagnostic problems, and proposed classification. Adv Anat Pathol. 2005 Nov;12(6):291-311.
Pai RK, Beck AH, Norton JA, Longacre TA. Appendiceal mucinous neoplasms: clinicopathologic study of 116 cases with analysis of factors predicting recurrence. Am J Surg Pathol. 2009 Oct;33(10):1425-39.
Yantiss RK, Panczykowski A, Misdraji J, Hahn HP, Odze RD, Rennert H, Chen YT. A comprehensive study of nondysplastic and dysplastic serrated polyps of the vermiform appendix. Am J Surg Pathol. 2007 Nov;31(11):1742-53.
Qizilbash AH. Primary adenocarcinoma of the appendix. A clinicopathological study of 11 cases. Arch Pathol. 1975 Oct;99(10):556-62.
McCusker ME, Coté TR, Clegg LX, Sobin LH. Primary malignant neoplasms of the appendix: a population-based study from the surveillance, epidemiology and end-results program, 1973-1998. Cancer. 2002 Jun 15;94(12):3307-12.