女性Skene腺疾病的影像特征  

Imaging findings of female Skene gland disease

作　　者：王焕军[1] 关键[1] 张皓钦 刘明娟[1] 郭燕[1] 

机构地区：[1]中山大学附属第一医院医学影像科,广州510080

出　　处：《中华放射学杂志》2017年第11期834-838,共5页Chinese Journal of Radiology

基　　金：广东省医学科学技术研究基金（A2017008）

摘　　要：目的 探讨女性Skene腺病变的影像特征.方法 回顾性分析2014年5月至2016年12月中山大学附属第一医院经手术病理证实为Skene腺疾病,且有完整CT或MRI资料的15例女性患者.8例行盆腔MRI平扫及增强扫描,5例行盆腔CT平扫及增强扫描,2例同时行盆腔CT及MRI检查.观察其影像特征.结果15例Skene腺病变共有3种类型.（1）Skene腺囊肿：3例.均发生于尿道下段后外侧或近尿道外口处,常表现为＂泪滴状＂囊性病变.CT平扫为水样低密度,平扫T1WI为低信号,T2WI为高信号.增强扫描后囊内容物无强化.1例合并感染者囊内T1WI信号增高并可见气体影,增强扫描后囊壁增厚、强化.（2）尿道憩室：10例,与Skene腺相通,均发生于尿道中下段后外侧.7例为完全环绕尿道的囊性＂轮辐状＂分隔肿物,3例表现为部分包绕尿道的＂马鞍状＂或＂马蹄形＂囊性肿物.平扫CT其内部呈水样密度;T1WI为低信号,T2WI为高信号.增强扫描后囊内容物无强化.6例合并感染者其内信号或密度不均或增高,增强后分隔或囊壁强化较明显.（3）Skene腺恶性肿瘤2例,其中憩室腺癌1例、憩室神经内分泌癌1例.为环绕尿道生长的囊实性肿物,平扫CT呈混杂等、低密度,T2WI为等、高混杂信号,T1WI为等、稍低信号,增强扫描后明显强化.结论 女性Skene腺疾病的发病部位及影像表现具有特征性.Objective To investigate the imaging characteristics of female Skene-gland （periurethral glands） disease. Methods A retrospective analysis of preoperative imaging findings was performed in 15 female patients with surgical-pathological proven Skene gland disease. MRI scans were performed in 8 cases, CT scans were performed in 5 cases, both CT and MRI were performed in 2 cases. Imaging characteristics were observed and summarized.Results There were 3 types of diseases,including：（1） Skene gland cyst （n=3）, located in the distal and posterolateral urethra or close to the proximity of urethra, presenting as cystic lesions with teardrop shape on sagittal images, which appeared as hypo-attenuation on non-enhanced CT, and hypo-intensity on T1WI, hyper-intensity on T2WI, and without enhancement. One case complicated with infection presented as hyper-intensity on T1WI and gaseous intensity inside,with thickened cystic wall and enhancement.（2）Urethral diverticulum communicating with Skene gland （n=10）, located in the middle or distal and posterolateral urethra, presented as a horseshoe shaped cystic lesion partially surrounding the urethral（n=3）or spoke wheel-like cystic lesion with multiple septum completely surrounding the urethra （n=7）. They appeared as fluid attenuation on unenhanced CT, and hypo-intensity on T1WI, hyper-intensity on T2WI and without enhancement. Heterogenous signal or attenuation and enhanced septum or cystic wall were found in 6 cases complicated with infection. （3） Malignant tumor （n=2, one adenocarcinoma and one neuroendocrine carcinoma）, presented as cystic-solid mass surrounding the urethral, showing heterogenous low attenuation on nonenhanced CT and iso-to hyper-intensity on T2WI and hypo-to iso-intensity on T1WI with significant enhancement.Conclusions Female Skene-gland disease has specific occurrence location and imaging characteristics.

关 键 词：囊肿 憩室 腺癌 体层摄影术 X线计算机 磁共振成像 尿道旁腺 

分 类 号：R445.2[医药卫生—影像医学与核医学] R695.1[医药卫生—诊断学] R816.7[医药卫生—临床医学]