Coexistence of endometriosis in women with mature cystic ovarian teratoma may not be rare.

Heesuk Chae
In: Research Square · 2020 · doi:10.21203/rs.2.21971/v1 · W4242041082
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Abstract

Abstract Background We investigated the incidence of endometriosis in women with mature cystic ovarian teratoma and analyzed the clinicopathologic features of this occurrence. Methods From January 2017 through December 2018, we retrospectively studied 71 women who had undergone cystectomy for mature cystic ovarian teratoma (n = 55, teratoma group) and coexistence of endometriosis and mature cystic ovarian teratoma (n = 16, complex group). Serum anti-Müllerian hormone (AMH) levels were measured preoperatively and one month after surgery. Results Sixteen (22.54%) patients had coexistence of endometriosis and mature cystic ovarian teratoma (complex group); 55 patients had mature cystic teratoma alone (teratoma group). Early-stage endometriosis (stage I) was present in eight patients and advanced-stage endometriosis (stage III or IV) was present in eight. In five cases (31.25%), the coexistence of endometrioma and mature cystic teratoma in the same ovary was observed. The mean operation time was significantly shorter in the teratoma group than in the complex group (61.02 ± 22.74 vs. 86.31 ± 35.35 min, p = 0.007). The complex group had more dysmenorrhea (43.8% vs. 7.3%, p = 0.002) and a significantly higher rate of decrease in serum anti-Müllerian hormone (AMH) levels (33.06 ± 24.92 vs. 16.31 ± 28.17%, p = 0.048). Conclusion(s) The prevalence of coexisting endometriosis and mature cystic ovarian teratoma may be underestimated. Patients with this rare concurrence may present with worsening dysmenorrhea and damage to ovarian reserve after surgery may be greater in patients with coexisting endometriosis than in patients with mature cystic teratoma alone.

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endometriosisendometriomadysmenorrhea

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