Primary insular carcinoid of the ovary.

Background: Primary insular carcinoid tumor of the ovary is a rare tumor and accounts for fewer than 1% of all cases of carcinoid in the body. With the exception of a single reported case, all previously described functioning ovarian carcinoid tumors have measured at least 10 cm in diameter. Thus, there appears to be a good correlation between the size of the tumor and the presence of the carcinoid syndrome.