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中华腔镜泌尿外科杂志(电子版) ›› 2026, Vol. 20 ›› Issue (05) : 542 -548. doi: 10.3877/cma.j.issn.1674-3253.2026.05.008

临床研究

腺性膀胱炎的多参数磁共振影像表现与病理对照分析
翁蓓, 温志华, 郭燕, 王焕军, 蔡迁, 孔令敏, 凌坚()   
  1. 510080 广州,中山大学附属第一医院放射诊断科
  • 收稿日期:2025-08-06 出版日期:2026-10-01
  • 通信作者: 凌坚
  • 基金资助:
    国家自然科学基金(82372075、82371911、82402415); 广东省自然科学基金杰出青年项目(2024B1515020061); 广州市青年医学创新与实践研究计划(2023QNYXYB009)

Multiparametric MRI features of cystitis glandularis: a radiologic-pathologic correlation study

Bei Weng, Zhihua Wen, Yan Guo, Huanjun Wang, Qian Cai, Lingmin Kong, Jian Ling()   

  1. Department of Radiology, the First Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510080, China
  • Received:2025-08-06 Published:2026-10-01
  • Corresponding author: Jian Ling
引用本文:

翁蓓, 温志华, 郭燕, 王焕军, 蔡迁, 孔令敏, 凌坚. 腺性膀胱炎的多参数磁共振影像表现与病理对照分析[J/OL]. 中华腔镜泌尿外科杂志(电子版), 2026, 20(05): 542-548.

Bei Weng, Zhihua Wen, Yan Guo, Huanjun Wang, Qian Cai, Lingmin Kong, Jian Ling. Multiparametric MRI features of cystitis glandularis: a radiologic-pathologic correlation study[J/OL]. Chinese Journal of Endourology(Electronic Edition), 2026, 20(05): 542-548.

目的

本研究旨在探讨腺性膀胱炎(CG)的多参数磁共振成像(mpMRI)表现,以提高其诊断准确性。

方法

回顾性分析2011年11月至2023年9月期间经病理证实且接受盆腔MRI检查的CG患者。分析并总结CG的mpMRI表现,并测量表观弥散系数(ADC)值评估病灶弥散受限程度。

结果

共纳入40例CG患者,平均年龄(49.4±14.4)岁,其中男性35例,女性5例。病灶主要位于膀胱三角区和/或膀胱颈部(36例,90.0%)。T2加权成像(T2WI)上32例病灶(80.0%)呈特征性"水草漂浮征"(即分层样结构)和/或"小囊泡征"表现。根据MRI形态学表现将CG分为四型,其中结节增厚型最常见(24例,60.0%)。多数病灶(37例,92.5%)呈明显强化,24例(60.0%)可见病灶表面线状强化。90.0%病灶(36例)弥散无或轻度受限,平均ADC值为(1.67±0.38)×10-3 mm2/s。

结论

CG在mpMRI包括T2WI、动态对比增强(DCE)成像和弥散加权成像(DWI)上具有多项特征性表现,对鉴别诊断具有重要价值。

Objective

This study aims to investigate the multiparametric MRI (mpMRI) manifestations of cystitis glandularis (CG), with the goal of improving the diagnostic accuracy of CG.

Methods

Patients with pathologically confirmed CG who underwent pelvic MRI between November 2011 and September 2023 were retrospectively reviewed. The mpMRI characteristics of CG were evaluated, and the apparent diffusion coefficient (ADC) values were measured to assess the diffusion restriction within the lesions.

Results

40 patients aged (49.4±14.4) years, including 35 male and 5 females with CG were analyzed. Lesions were predominantly located in the trigone and/or bladder neck (90.0%). On T2-weighted imaging (T2WI), 32 lesions (80.0%) exhibited characteristic "floating water weeds sign" (a layered structure) and/or "bubble-like sign." Based on MRI morphology, CG was classified into four types, with nodular thickening type being the most common (60.0%). The majority of lesions (92.5%) exhibited marked enhancement, with 24 patients (60.0%) showing linear contrast enhancement on the lesion surface. Most lesions (90.0%) showed no or mild diffusion restriction with a mean ADC value of (1.67 ± 0.38) ×10-3 mm2/s.

Conclusions

CG demonstrates several characteristic mpMRI features, particularly on T2WI, dynamic contrast-enhanced (DCE) imaging, and diffusion-weighted imaging (DWI), which are valuable for differential diagnosis.

图1 腺性膀胱炎(CG)患者入组流程图
表1 腺性膀胱炎患者盆腔MRI扫描参数
表2 腺性膀胱炎患者基本信息及其病理和影像学分型
图2 四种腺性膀胱炎分型的影像学及病理表现注:a为结节增厚型,T2WI显示膀胱壁不规则增厚伴分层样改变,局部见小结节突入膀胱腔(白箭头示),增强扫描显示结节和黏膜表面呈线样强化,DWI显示轻度弥散受限,病理为混合型(×40);b为结节型,T2WI显示一带蒂结节从膀胱前壁突入膀胱腔(白箭头示),增强扫描显示结节明显强化,DWI呈高信号,中心蒂部呈低信号,膀胱肌层未见受累,病理为经典型(×40);c为局部增厚型,T2WI显示膀胱颈部和三角区局限性不规则增厚伴多层样改变,可见少量"小囊泡"样高信号(白箭头示),增强扫描显示中度均匀强化,DWI显示轻度弥散受限,病理为混合型(×40);d为弥漫增厚型,T2WI显示全膀胱壁弥漫性增厚,外缘毛糙,膀胱容积缩小,动态增强早期显示表面黏膜线状强化(白箭头示),病理为经典型(×100),该患者同时合并盆腔脂肪增多症,膀胱呈特征性"倒置梨形",直肠乙状结肠受压变直变窄(黑箭头示),膀胱周围血管增生(白箭头示);ADC为表观弥散系数
表3 腺性膀胱炎患者的病灶位置和MRI信号特点
表4 腺性膀胱炎影像学分型与病理分型的对应关系
图3 腺性膀胱炎T2WI的特征性影像学表现注:a为分层样结构(即"水草漂浮征"),膀胱尿路上皮呈低信号(白箭头示),增厚的肌层呈低信号(黑箭头示),两者之间稍高信号影为增厚水肿的尿路上皮下组织(红箭头示);b为"小囊泡征",病灶内散在多发小圆形高信号影,边缘光滑
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