Zhang Yuan, Lv Hanxue, Lin Congjie, Liu Hua
Affiliated Hospital of Shandong Second Medical University, China.
J Int Med Res. 2025 Sep;53(9):3000605251372459. doi: 10.1177/03000605251372459. Epub 2025 Sep 8.
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.
副腔隙性子宫畸形是一种罕见的苗勒管发育先天性异常，通常影响育龄期年轻女性。最常见的症状包括慢性周期性盆腔疼痛和严重痛经，不过由于其罕见性、多种鉴别诊断以及患者认知度低，诊断往往延迟。本报告描述了一名围绝经期女性患副腔隙性子宫畸形的病例。该患者右下腹可触及肿块，无明显慢性盆腔疼痛或痛经。最初根据超声成像误诊为右侧附件囊肿，腹腔镜探查发现子宫体有肿块，从而将诊断修正为副腔隙性子宫畸形，术中发现及组织病理学检查证实了这一诊断。术后结果良好。鉴于对其发病机制研究有限且缺乏独特的诊断标志物，该病例凸显了副腔隙性子宫畸形的诊断挑战。影像学和组织病理学对于准确诊断至关重要。手术干预，尤其是腹腔镜手术，仍然是首选治疗方法，切除通常会带来良好的术后预后。
