e15508 Background: Borderline ovarian tumors, also called low-malignancy potential tumors, are infrequent tumors present predominantly in pre-menopause women. Their evolution after surgical treatment is generally very good. The main objective of this paper is to show the evolution of a group of borderline tumors treated at our institution. Methods: Between January 1, 2000 and January 1, 2010, 36 patients diagnosed with ovarian borderline tumors were examined by two independent pathologists, according to the guidelines established by the USA Association of Directors of Anatomic and Surgical Pathology. These patients were followed at IOHM and comprise this paper’s study group. Results: Population Characteristics: Mean Age: 41 years (Range: 20-85). Affected Ovary (Right: 17 pts; Left: 14 pts; Both: 5 pts). Pathology: Mucinous (17 pts), Serous (16 pts), Clear, Brenner and Endometroid Cells (1 pt each). Stages: IA (24 pts), IB (5 pts), IC (2pts), IIIA (4 pts), IIIC (1 pt). Five patients presented non-invasive peritoneal implants and three presented positive peritoneal liquid. All patients were surgically treated: 28 with total anexohisterectomy (TAH) and 8 with unilateral ooforectomy. No patient was given any chemotherapy or radiotherapy treatment. Four patients did not attend follow-up consultations and were lost after 4, 6, 12 and 29 months with no evidence of disease (NED). Thirty-two patients were followed bi-annually during the first five years and annually thereafter. One patient became pregnant after the surgery. All patients are alive and NED with an average follow up of 50 months (range: 29-133). Conclusions: 1) Although half the cases in the study were under 35 years old, there were 12 tumors present in patients over 50 years of age and 1 borderline tumor present in an 85 year old patient. 2) Surgically treated ovarian borderline tumors have a high chance of being curable without the need of chemotherapy or radiotherapy. 3) Conservative surgery in young patients allows a conservation of fertility, provided they are subject to an adequate follow-up.
947 Results after conservative surgery of stage II/III serous borderline ovarian tumors
