Ovarian primary carcinoid tumors of pure histological type can pose a significant diagnostic
challenge in its separation from metastatic carcinoids from the gastrointestinal tract. Yet, their
clinical management and prognosis are drastically different. At the molecular level, ovarian
primary carcinoid tumors are thought to be of germ cell origin, frequently after the first meiotic
division. We report a 21.5-cm ovarian insular carcinoid tumor in a 50-year-old woman who
had no evidence of extraovarian tumor. The absence of teratomatous components and the …