Location
Suwanee, GA
Start Date
17-4-2026 12:00 PM
End Date
17-4-2026 1:00 PM
Description
Background:
Mucinous ovarian tumors are epithelial neoplasms that range from benign to borderline to malignant histology. Borderline ovarian tumors comprise a notable proportion of epithelial ovarian tumors. The diagnosis of a borderline ovarian tumor during pregnancy is rare. Histopathologic evaluation of borderline mucinous ovarian tumors in pregnant patients has demonstrated a higher frequency of aggressive histologic features compared with nonpregnant cohorts. Despite these findings, borderline ovarian tumors generally exhibit low malignant potential, and survival outcomes among pregnant patients remain comparable to those of nonpregnant women.
Objective:
This case describes a 28-year-old patient with a dichorionic twin pregnancy diagnosed with a borderline mucinous ovarian neoplasm, with particular focus on multidisciplinary management and obstetric outcomes .
Methods:
A 28-year-old G1P0 at 8 weeks gestation with a viable twin pregnancy was found to have a 15 x 11cm multiloculated right adnexal mass with septations and minimal internal vascularity on transvaginal ultrasound. An exploratory laparotomy with right salpingo-oophorectomy was performed at 15 weeks gestation. Peritoneal washings were obtained, and intraoperative frozen-section analysis was conducted.
Results:
At 15 weeks gestation, intraoperative findings revealed a 17cm mass arising from and replacing the right ovary. Final pathology confirmed a mucinous ovarian tumor of low malignant potential. Peritoneal washings were negative for malignant cells, and the contralateral adnexa appeared grossly normal. The postoperative course was uncomplicated, and the twin gestation progressed without further complication. Delivery was accomplished via cesarean section at 37 weeks gestation. No evidence of recurrence has been observed on follow-up.
Conclusion:
This case represents a unique contribution to the literature, as the coexistence of a borderline ovarian tumor and twin gestation is rarely reported. It underscores that antepartum surgical management during the second trimester of a twin pregnancy is feasible and can be associated with favorable maternal and fetal outcomes. Current evidence does not support an association between pregnancy and malignant transformation of benign or borderline neoplasms.
Embargo Period
6-1-2026
Included in
Management of a Borderline Mucinous Ovarian Tumor in a Twin Pregnancy
Suwanee, GA
Background:
Mucinous ovarian tumors are epithelial neoplasms that range from benign to borderline to malignant histology. Borderline ovarian tumors comprise a notable proportion of epithelial ovarian tumors. The diagnosis of a borderline ovarian tumor during pregnancy is rare. Histopathologic evaluation of borderline mucinous ovarian tumors in pregnant patients has demonstrated a higher frequency of aggressive histologic features compared with nonpregnant cohorts. Despite these findings, borderline ovarian tumors generally exhibit low malignant potential, and survival outcomes among pregnant patients remain comparable to those of nonpregnant women.
Objective:
This case describes a 28-year-old patient with a dichorionic twin pregnancy diagnosed with a borderline mucinous ovarian neoplasm, with particular focus on multidisciplinary management and obstetric outcomes .
Methods:
A 28-year-old G1P0 at 8 weeks gestation with a viable twin pregnancy was found to have a 15 x 11cm multiloculated right adnexal mass with septations and minimal internal vascularity on transvaginal ultrasound. An exploratory laparotomy with right salpingo-oophorectomy was performed at 15 weeks gestation. Peritoneal washings were obtained, and intraoperative frozen-section analysis was conducted.
Results:
At 15 weeks gestation, intraoperative findings revealed a 17cm mass arising from and replacing the right ovary. Final pathology confirmed a mucinous ovarian tumor of low malignant potential. Peritoneal washings were negative for malignant cells, and the contralateral adnexa appeared grossly normal. The postoperative course was uncomplicated, and the twin gestation progressed without further complication. Delivery was accomplished via cesarean section at 37 weeks gestation. No evidence of recurrence has been observed on follow-up.
Conclusion:
This case represents a unique contribution to the literature, as the coexistence of a borderline ovarian tumor and twin gestation is rarely reported. It underscores that antepartum surgical management during the second trimester of a twin pregnancy is feasible and can be associated with favorable maternal and fetal outcomes. Current evidence does not support an association between pregnancy and malignant transformation of benign or borderline neoplasms.