目的:探讨盆腔淋巴结清扫术后并发淋巴囊肿的影像学特征与诊断价值评估.方法:选取47例妇科恶性肿瘤患者行盆腔淋巴结清扫术后采用磁共振成像(MRI)检查发现盆腔淋巴囊肿的影像学病例资料,进行回顾性分析.结果:在47例病例中发现淋巴囊肿47例,淋巴囊肿病灶52个,位于左侧盆腔30个,右侧盆腔22个,囊肿主要位于髂外血管周围,MRI主要表现为圆形、卵圆形、肾形或哑铃形,囊壁均匀光滑,囊内表现为长T1和长T2信号,磁共振扩散加权成像(DWI)呈现为弥散受限的高信号,淋巴囊肿壁和囊肿内的分隔增强扫描后呈现中等强化信号,囊肿内容物无明显强化信号.结论:淋巴囊肿在MRI上显现出特征性的影像学表现,利用MRI进行诊断结果可靠、准确.%Objective:To explore the imaging features of complicated lymphocele after the pelvic lymph node dissection. Methods: After pelvic lymph nodes dissection, lymphoceles in pelvic cavity of 47 patients with gynecological malignant tumor were found by magnetic resonance imaging (MRI) and all of these imaging data were retrospectively analyzed.Results:All of 47 cases had lymphoceles in pelvic cavity, and the number of lymph node lesion was 52 (30 were at left side of pelvis, 22 were at right side of pelvis); the distribution of most lymphocele were around of external vein and artery of iliac; the main MRI features were roundness, oval, reniform or dumb-bell shape with smooth and uniform lymphocele wall, and the intracystic manifestations were long T1signal and long T2signal; the manifestation of DWI was high signal of limited dispersion; after enhancement scan, the wall of lymphocele and intracyst appeared middle reinforcement signal, and there was no obvious reinforcement signal in cystic contents.Conclusion: There are characteristic MRI imaging manifestations in lymphocele, and the diagnosis of MRI is reliable and accurate.
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