Cancer of the appendix is an uncommon disease that is rarely suspected rarely before surgery. Although several case series of these tumors have been published, little research has been anchored in population-based data on cancer of the appendix.
This analysis included all actively followed cases of appendiceal neoplasms reported to the National Cancer Institute’s Surveillance, Epidemiology and End-Results (SEER) program between 1973 and 1998. Tumors were classified as colonic type adenocarcinoma, mucinous adenocarcinoma, signet ring cell carcinoma, goblet cell carcinoid, and malignant carcinoid (SEER only collects data on carcinoids specifically classified as malignant). We compared incidence, overall survival and survival rates by extent of disease at diagnosis.