Accessory cavitated uterine malformation in a perimenopausal woman: Case report and literature review

Yuan Zhang, Hongliang Lv, Congjie Lin, C. X. Lin, Huan Liu
In: Journal of International Medical Research · 2025 · vol. 53(9) , pp. 3000605251372459 · doi:10.1177/03000605251372459 · PMID:40921702 · W4414081388
review OA: gold CC0
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⚙ AI-generated summary by claude@2026-06, 2026-06-09 ⓘ

This report details a rare case of accessory cavitated uterine malformation in a perimenopausal woman misdiagnosed as an adnexal cyst, highlighting diagnostic challenges and the importance of imaging and histopathology for accurate diagnosis and surgical treatment.

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Abstract

Accessory cavitated uterine malformation is a rare congenital anomaly of Müllerian duct development that typically affects younger women of reproductive age. The most common symptoms include chronic cyclic pelvic pain and severe dysmenorrhea, although diagnosis is frequently delayed owing to its rarity, multiple differential diagnoses, and low patient awareness. This report describes the case of a perimenopausal woman with accessory cavitated uterine malformation. The patient exhibited a palpable mass in the right lower abdomen without notable chronic pelvic pain or dysmenorrhea. It was initially misdiagnosed as an adnexal cyst in the right region based on ultrasound imaging, and laparoscopic exploration revealed a mass in the uterine corpus, leading to a revised diagnosis of accessory cavitated uterine malformation, which was confirmed through intraoperative findings and histopathological examination. The postoperative outcomes were favorable. This case underscores the diagnostic challenges of accessory cavitated uterine malformation, given the limited research on its pathogenesis and the absence of distinctive diagnostic markers. Imaging and histopathology are essential for an accurate diagnosis. Surgical intervention, especially laparoscopy, remains the preferred treatment, with excision typically resulting in a favorable postoperative prognosis.

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Condition tags

chronic_pelvic_paindysmenorrhea

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References (30)

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