Huge endometrioma with severe ascites mimicking ovarian cancer
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This report details a case where a large ovarian endometrioma with significant ascites and elevated CA125 levels was misdiagnosed as ovarian cancer but confirmed as endometriosis post-laparoscopy.
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Abstract
Ovarian endometrioma accompanying with elevated levels of serum tumor antigens and free peritoneal fluid may be misdiagnosed as ovarian cancer. A 40 year-old nulliparous woman was referred to our clinic with 15x15x12.4 cm and 6x4x3.7 cm hypoechoic right adnexal and 7.3x3.8x3.2 cm hypoechoic left adnexal mass accompanying with excessive free fluid at pouche of douglas and elevated levels of serum CA125 (143.72 U/mL) mimicking ovarian cancers. Laparoscopy was performed. Ruptured right ovarian endometrioma and unruptured bilateral ovarian endometrioma adherent to sigmoid colon and omentum were observed. Right adnexectomy, left ovarian cystectomy and bridectomy was performed. Histological examination confirmed the diagnosis of endometrioma. Adnexal mass with free peritoneal fluid and high levels of tumor antigen CA125 mimicking ovarian cancer has been rarely diagnosed as endometrioma.
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References (6)
- Drastic elevation of serum CA125, CA72-4 and CA19-9 levels during menses in a patient with probable endometriosis via openalex
- Endometriosis presenting with hemorrhagic ascites, severe anemia, and shock via openalex
- Massive ascites as a presentation in a young woman with endometriosis: a case report via openalex
- W2035213597 via openalex
- W2127532993 via openalex
- W2136940189 via openalex
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- last seen: 2026-06-10T17:14:06.276822+00:00
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