抄録
We report 5 cases of ovarian borderline mucinous tumor diagnosed after laparoscopic surgery. The patients were aged 14, 24, 26, 48 and 73 years. Two of the younger patients (14 and 26 years) had huge unilateral ovarian tumors occupying almost the whole of the abdomino-pelvic cavity. They selected fertility-preserving and laparoscopic surgery because their tumors had no sign of malignancy preoperatively. The 3 other patients had unilateral tumors ranging in from 6 to 8 cm, and all appeared to be benign. All patients underwent laparoscopic surgery, and there have been no recurrences. In the past several decades the bulk of surgical therapy has shifted from a radical approach to a more conservative one. There are various methods of surgery. Laparoscopic surgery is often chosen for benign tumors. However, there are reports of cases diagnosed as mucinous borderline tumor after laparoscopic surgery. A precise preoperative diagnosis of mucinous borderline tumor is difficult. Because of the absence of specific preoperative criteria, diagnosis may not be made until after surgery or pathologic examination. Moreover, as these borderline tumors frequently occur in younger patients, considerations of preserving fertility and reducing postoperative morbidity can make the clinical management more challenging. Ovarian borderline tumor with noninvasive implants is traditionally considered to be non-aggressive. Recurrence is delayed and transformation to high-grade carcinoma is rarely documented. However, in the rare cases of recurrence or metastasis, careful and prolonged follow-up is needed after operation, and informed consent is very important.