Abstract
Goblet cell carcinoid of the appendix, a variant of carcinoid, is a relatively rare tumor in Japan. However, its histological characteristics, clinical behaviour, and prognosis present many problems. Although light microscopy shows this tumor to be composed of mature epithelial cells, such as mucous-producing cells and silver-positive cells, clinical behaviour of the tumor appears to lie between the typical behaviour of an ordinary carcinoid and that of a well differentiated adenocarcinoma. This tumor can generally be treated by simple appendectomy, although more radical procedure in sometimes indicated. Prognosis of this tumor is quite favorable, but there are some patients who contract a more virulent form of the disease. We report a case of goblet cell carcinoid of the appendix that required a subsequent right hemicolectomy after appendectomy.
