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Background <p>Struma ovarii is a rare monodermal ovarian teratoma composed predominantly of thyroid tissue, accounting for approximately 1% of all ovarian tumors (J Clin Diagn Res 8:FD03–4, 2014, Pathology 39:139–46, 2007). Its nonspecific clinical presentation often complicates preoperative diagnosis.</p> Case Presentation <p>A 48-year-old woman with diabetes mellitus presented with acute lower abdominal pain and fever. Imaging suggested bilateral tubo-ovarian abscesses(TOAs). Emergency laparoscopy confirmed bilateral TOAs and revealed a distinct right ovarian cystic mass. Right salpingo-oophorectomy and left salpingostomy were performed. Histopathology identified struma ovarii in the right ovary. Postoperative thyroid function was normal, and the patient remained asymptomatic with no recurrence at six-month follow-up.</p> Conclusion <p>This case highlights (reviewer 1 comment 7) the rare coexistence of struma ovarii and bilateral TOAs, emphasizing the importance of considering uncommon pathological entities when evaluating complex adnexal masses, particularly in acute infectious settings.</p>

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Unexpected diagnosis of struma ovarii in a patient with bilateral tubo-ovarian abscesses: a case report

  • 期刊论文

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  • 发表日期：

    2026年1月30日

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  • Sang Hoon Cheon,
  • Jinhyuk Choi,
  • Hyeong Sim Son,
  • Won Moo Lee,
  • Jeong Kyu Hoh,
  • Jung Hye Hwang

摘要

Background

Struma ovarii is a rare monodermal ovarian teratoma composed predominantly of thyroid tissue, accounting for approximately 1% of all ovarian tumors (J Clin Diagn Res 8:FD03–4, 2014, Pathology 39:139–46, 2007). Its nonspecific clinical presentation often complicates preoperative diagnosis.

Case Presentation

A 48-year-old woman with diabetes mellitus presented with acute lower abdominal pain and fever. Imaging suggested bilateral tubo-ovarian abscesses(TOAs). Emergency laparoscopy confirmed bilateral TOAs and revealed a distinct right ovarian cystic mass. Right salpingo-oophorectomy and left salpingostomy were performed. Histopathology identified struma ovarii in the right ovary. Postoperative thyroid function was normal, and the patient remained asymptomatic with no recurrence at six-month follow-up.

Conclusion

This case highlights (reviewer 1 comment 7) the rare coexistence of struma ovarii and bilateral TOAs, emphasizing the importance of considering uncommon pathological entities when evaluating complex adnexal masses, particularly in acute infectious settings.