Clinical and Experimental Obstetrics & Gynecology (CEOG) is published by IMR Press from Volume 46 Issue 1 (2019). Previous articles were published by another publisher on a subscription basis, and they are hosted by IMR Press on imrpress.com as a courtesy and upon agreement with S.O.G.
Purpose: To report a rare giant isolated cystic adenomyoma mimicking the degeneration of uterine myoma. Materials and Methods: The authors present a 39-year-old woman referred to this hospital complaining of lower abdominal pain. Transvaginal ultrasonography (US) showed a 6.0×3.9 cm cystic region within an 8.0×6.1cm solid mass on the posterior of the uterine wall mimicking the degeneration of uterine myoma. Laparotomy was performed and the mass was excised completely. Results: Pathology of the specimen demonstrated the cystic cavity was lined by endometrial glands and stroma, hemosiderin deposition was also seen, confirming the diagnosis of cystic adenomyoma. The patient made a good recovery and she was relieved from symptoms and remained asymptomatic over her follow-up interval. Conclusion: Clinicians need to pay attention to its differential diagnosis of uterine cystic lesions preoperatively.