Goblet cell carcinoid of the appendix accompanied by adenomatous polyp with high-grade dysplasia at the cecum

Özet

Goblet cell carcinoid tumor of the appendix is an uncommon neoplasia that shares the histological attributes ofboth adenocarcinoma and carcinoid tumors. Its prognosis has a more aggressive course than the other known carcinoid tumors. Clinical diagnosis of goblet cell carcinoid is seldom made preoperatively. The most common clinicalpresentation of goblet cell carcinoid tumor is acute appendicitis. In this study, we report a patient on whom righthemicolectomy was performed because of a cacal sessile polyp with high grade dysplasia; goblet cell carcinoidtumor of the appendix was revealed incidentally during microscopic evaluation of the appendectomy specimen.The patient healed uneventfully and no recurrence was observed after the 12-month follow-up period. Careful microscopic examination of the appendectomy specimen is key for the diagnosis of appendiceal tumors such as gobletcell carcinoid, especially in elderly patients.