输卵管卵巢脓肿的低场MR诊断

目的探讨输卵管卵巢脓肿(tuboovarian abscess,TOA)的低场MRI表现及诊断价值。资料与方法回顾性分析经手术病理证实的26例TOA患者的MRI资料。结果 26例33个TOA,表现为附件区厚壁囊性或囊实性肿块,边界不清,囊内见多房分隔,肿块呈等长T1、长T2信号,信号欠均匀。其中24个脓肿伴积脓或积液扩张的输卵管管状结构,表现为弯曲长管状、腊肠状、糖葫芦状或曲颈瓶状。增强扫描脓肿实性及分隔部分明显强化,囊壁强化,壁厚2.5~20 mm。脓肿与子宫粘连21例,直肠乙状结肠粘连13例,骶前直肠周围脂肪水肿17例,单侧或双侧子宫骶骨韧带增厚15例,盆腔小肠、肠系膜、大网膜及盆壁结构广泛增厚粘连9例。正确诊断30个(90.9%),误诊卵巢癌1例,卵巢巧克力囊肿2例。结论 TOA具有特征性低场MRI表现。低场MRI是一种较理想的检查方法 ,具有较高的诊断价值。

Diagnostic Value of Low Field MR in Tuboovarian Abscess

Objective To investigate the low-field MR features of tuboovarian abscess.Materials and Methods Twenty six patients with tuboovarian abscess confirmed by postoperative histopathology underwent MRI examination.The MRI data were retrospective analyzed.Results There were 33 tuboovarian abscesses in 26 patients.All the abscesses showed low signal on T1 weighted and high signal on T2 weighted images.The lesions demonstrated as cystic masses with ill defined cystic walls and septums.Twenty four lesions showed dil...