Assessment of Ovarian Volume and Hormonal Changes after Ovarian Cystectomy in the Different Ovarian Tumor

Joon-Cheol Park, Jin Gon Bae, Jong‐In Kim, Jeong-Ho Rhee
2008 · vol. 35(2) , pp. 155–162 · W2488371169
article OA: green CC0 ⤵ 3 in-corpus citations
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⚙ AI-generated summary by claude@2026-06, 2026-06-08 ⓘ

Ovarian cystectomy reduced ovarian volume in large endometriomas and non-endometriomas, but hormonal markers of ovarian reserve remained unchanged compared to preoperative values.

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⚙ AI-generated deep summary by claude@2026-06, 2026-06-09 ⓘ

This prospective study assessed ovarian reserve changes after cystectomy for unilateral ovarian tumors in 22 women aged ≤35 with regular cycles, comparing an endometrioma group versus non-endometrioma tumors and stratifying by size (<10 cm vs ≥10 cm). Ovarian volume was measured by transvaginal ultrasound on cycle day 3 within one month pre-surgery and again 3 months post-surgery, while basal FSH and estradiol and a clomiphene citrate challenge test were performed preoperatively and repeated after at least two spontaneous post-surgery cycles; three women who became pregnant within 3 months were excluded. Ovarian volume decreased significantly after surgery in endometriomas and in non-endometriomas ≥10 cm, but not in non-endometriomas <10 cm, whereas basal FSH and cycle day 10 FSH on CCCT showed no significant pre–post or between-group differences. This paper is centrally about endometriosis — it directly investigates ovarian volume and hormonal reserve after cystectomy stratified by endometrioma versus non-endometrioma.

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Abstract

Objectives: The aim of this study was to assess the change of ovarian reserve after removal of ovarian tumor using basal FSH, E2, clomiphene citrate challenge test and ovarian volume.\nMethods: Twenty two patients with unilateral ovarian tumor, ≤35 years old, regular menstrual cycle were collected prospectively and divided into endometrioma or non-endometrioma group. We measured the ovarian volume with transvaginal ultrasonography on the day 3 of menstrual cycle within one month before and 3 months after surgery. Basal (cycle day 3) FSH, E2 and CCCT were checked before surgery and repeated at least 2 spontaneous cycles later after surgery. Three patients that had been pregnant within 3 months after surgery were excluded in analysis.\nResults: The ovarian volume was reduced significantly after surgery in endometrioma and non-endometrioma ≥10 cm group (4.79±2.57 cm3 and 5.21±1.33 cm3, respectively), but not in the non-endometrioma <10 cm group (6.18±2.85 cm3). After surgery, basal FSH and cycle day 10 FSH on CCCT in endometrioma and non-endometrioma were 4.25±0.20 mIU/ml and 3.79±0.80mIU/ml, 4.24±0.85 mIU/ml and 4.28±0.92 mIU/ml, respectively. There were neither significant difference in comparison with the preoperative results nor between two groups.\nConclusions: Enucleation of ovarian mass was associated with a significant reduction in ovarian volume in endometrioma and non-endometrioma larger than 10cm in diameter. Hormonal markers for evaluation of ovarian reserve, such as basal and cycle day 10 FSH on CCCT, were not changed significantly in each group. In reproductive age women, conservative enucleation or cystectomy rather than oophorectomy should be considered even in a large benign tumor and ovarian function could be reserved by meticulous operative technique.

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endometrioma

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