Table 1. Epithelial neoplasms of the appendix.

Mucinous
Mucocele Mucinous cystadenoma Mucinous neoplasm of uncertain malignant potential Borderline appendiceal mucinous tumor Mucinous neoplasm of low malignant potential Low-grade appendiceal mucinous neoplasm Mucinous cystadenocarcinoma Mucinous adenocarcinoma Cystadenocarcinoma Disseminated peritoneal adenomucinosis Peritoneal mucinous carcinomatosis Pseudomyxoma peritonei Pseudomyxoma peritonei syndrome
Nonmucinous
Appendiceal adenoma Appendiceal adenocarcinoma Appendiceal signet ring cell carcinoma