Management of borderline ovarian tumors: results of an italian multicenter study

OBJECTIVE: A rising number of patients affected by ovarian masses suspected of borderline ovarian tumor are operated on primary laparoscopic procedure. METHODS: From January 1992 to June 2004, 113 patients affected by low malignant ovarian tumor were followed at the Gynecologic Departments of five Italian Institutions. Fifty-two (46.0%) patients were operated on laparoscopic surgery, whereas traditional laparotomic approach was preferred in 61 cases (54%). In 53 patients (46.9%), a fertility-sparing surgical treatment was chosen. RESULTS: The diameter of the ovarian cysts ranged between 20 and 300 mm; in 20 out 113 patients (17.7%), the borderline tumor was bilateral. In 22/113 (19.5%) cases, we observed tumor rupture or spilling during surgery, and this incidence was greater in the group of patients treated by laparoscopy compared to laparotomy, and this difference is statistically significative. In 13/113 (11.5%) patients, we observed a relapse; the incidence of relapse, however, is not dependent on the type of surgical approach. The progression-free survival is higher for stages IA-IC if compared to stages more than Ist and the difference is statistically significant. Type of surgical approach, laparoscopic versus laparotomic, does not seem to influence the PFS; when cystectomy is performed, the PFS is significantly lower if compared with demolitive surgery or monolateral annessectomy. Eight pregnancies were obtained: in one case, miscarriage was observed, whereas 7 healthy babies were born all but two by vaginal delivery. CONCLUSIONS: Conservative laparoscopic surgery may be the treatment of choice; an attractive option is that this surgery should be performed by an oncologist surgeon to obtain correct surgical staging and better results in terms of both relapse-free survival and pregnancies.