A Patient with Tubo-Ovarian Abscess with Endometriosis after Transvaginal Oocyte Retrieval

Tsutomu Muramoto, Ryo Koike
In: Open Journal of Obstetrics and Gynecology · 2020 · vol. 10(04) , pp. 445–451 · doi:10.4236/ojog.2020.1040040 · W3016156553
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⚙ AI-generated summary by claude@2026-06, 2026-06-08 ⓘ

This case describes a patient with endometriosis who developed a tubo-ovarian abscess following oocyte retrieval, requiring surgical intervention when antibiotic treatment failed.

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

This case report studied a 35-year-old woman with infertility and known endometriotic cysts who developed a right tubo-ovarian abscess several days after ultrasound-guided transvaginal oocyte retrieval (OPU). After initial antibiotic prophylaxis and despite no early ultrasound changes, transvaginal echography later showed right oviduct enlargement with elevated WBC and CRP; conservative antibiotics improved symptoms briefly but ultimately failed, leading to laparoscopy where an abscess involving the ovary and fallopian tube was found and a right appendectomy performed due to difficult tube preservation and infection risk. The authors cultured E. coli from abscess contents and report no recurrence over 12 months, but the paper is limited by its single-patient design and lack of established correlation between endometriosis severity and infection severity. This paper is centrally about endometriosis — it describes a tubo-ovarian abscess occurring after OPU in a patient with endometriotic cysts and discusses how endometriosis may aggravate pelvic infection severity.

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Abstract

Ultrasound-guided oocyte retrieval is a standard procedure for ovum pick up (OPU) during in vitro fertilization. Possible complications include tubo-ovarian abscesses (TOAs) in the fallopian tubes, and endometriosis may be associated with increasing the severity of pelvic infection. A 35-year-old woman who had been treated for infertility and endometriosis presented with abdominal pain that appeared several days after OPU. There were no significant changes in the size of both ovaries and fallopian tubes. A week later, transvaginal echography revealed right oviduct enlargement. Because conservative treatment with antibiotics before this revelation had not been successful, laparoscopy was performed for abscess drainage and/or excision of the adnexa. Intraoperative findings were an abscess in the right adnexa involving the ovary and fallopian tube. Preservation of the right fallopian tube was difficult due to the risk of prolonged infection, and a right appendectomy was performed. The diagnosis was a right TOA. Severe cases of pelvic infection after OPU may cause infertility. The presence of endometriosis may aggravate the infection, but the relationship between the extent of the endometriosis and the severity of the infection is not known. Even if the endometriosis is mild, as it was in this patient, surgical treatment should be considered if a severe infection occurs after OPU and conservative treatment is not effective.

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Condition tags

endometriosisinfertility

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last seen: 2026-06-10T17:14:06.276822+00:00
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