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Korean Journal of Obstetrics & Gynecology 2003;46(1):66-71.
Published online January 1, 2003.
Evaluation of Adnexal Mass associated with Pregnancy.
June Seek Choi, Jae Hyug Yang, Hyun Mee Ryu, Sang Hee Jung, Myoung Jin Moon, Yon Ju Kim, Jin Hoon Chung, Kyu Hong Choi
Department of Obstetrics and Gynecology, Samsung Cheil Hospital and Women's Healthcare Center, SungKyunKwan University, School of Medicine, Seoul, Korea.
To evaluate patients with adnexal masses that were managed surgically during pregnancy and their effect on fetal outcome. METHODS: The data were reviewed concerning pregnant women who required surgery at Samsung Cheil hospital between January 1996 to December 2001. Among 50,126 deliveries, 255 cases of ovarian tumors were evaluated for clinical aspects, histologic patterns, and obstetrics and fetal outcome. RESULTS: 1. The prevalence of ovarian mass in pregnancy was 0.5% (255 cases in 50,126 deliveries). 14 cases of malignant tumors were founded. 2. The maternal mean age was 28.7+/-3.6 years old, mean gavida was 1.8+/-1.1, and mean parity was 0.3+/-0.5. 3. The mean gestational weeks of diagnosis was 11.9+/-8.6 weeks. Prenatal operations were performed in 160 cases, and 95 cases of ovarian masses were operated at delivery time by cesarean section. 4. In the group of prenatal operation, preterm delivery and caesarian section rate were decreased at operation before 23 gestational weeks (P<0.05). 5. In 42 cases, Emergency operations were done. Mean delivery weeks was 36.7+/-7.2 weeks and was earlier than elective operation group (P<0.05). 6. The mean size of ovarian mass was 9.5+/-3.8 cm. The pathologic features of the 255 lesions were as follows: 98 benign cystic teratomas, 43 mucinous cystadenomas, 31 endometriomas, 20 serous cystadenomas, 14 simple cysts, 14 paraovarian cysts, 6 follicular cysts, 5 corpus luteal cysts, 5 theca luteal cysts, 3 hydrosalpinx, 2 fibromas, and 14 malignant tumors. 7. The 231 patients for whom the outcome of pregnancy was available, 18 (7%) gave birth before 37 weeks of gestation, while 3 (1.2%) experienced spontaneous abortions, 2 artificial abortions, and 1 hysterotomy. CONCLUSION: Most adnexal masses identified by sonography during pregnancy were small, simple cysts that did not pose a risk a pregnancy. However the percentage of malignant tumors or tumors of low malignant potential was 1.8 fold greater than previously reported. Surgical intervention at <23 weeks of gestation might have not been adverse outcomes.
Key Words: Adnexal mass, Pregnancy

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