Background: Appendiceal neoplasms are rare and generally determined in appendectomy specimens for acute appendici- tis. Depending on a tumor's histopathology and size, appendectomy or right hemicolectomy are the surgical treatment options. Adenocarcinomas, mucinous neoplasms, goblet cell carcinoids and neuroendocrine tumors are the types of the primary appendiceal neoplasm histopathology. In this study, we aimed to determine the incidence of appendiceal neoplasms in an acute appendicitis cohort. Also, histopathological distributions, demographic data, preoperative radiological diagnosis, and intraoperative findings were revealed for analysis, retrospectively.