Malignant tumors of the appendix are rare and the histopathological diagnosis can often be made in the postoperative period. The clinical records of 1800 patients who underwent surgery in emergency conditions with a preliminary diagnosis of acute appendicitis were reviewed retrospectively. Carcinoid tumor was detected in 7 patients (0.38%) on histopathological examination. Of these patients, 4 were male (57.1%), 3 were female (42.9) and the mean age was found to be 36 (22-49). Appendiceal carcinoid tumors are tumors with a good prognosis. Even though their prognosis is good, close monitoring of the patients is recommended due to the likelihood of the detection of a proportion (13-33%) of synchronous and/or metachronous colorectal cancer in the literature.