目的 探讨HELLP综合征的影像学表现.方法 回顾性分析8例经临床及实验室证实的HELLP综合征患者的影像资料,并复习相关文献.结果 2例头颅CT异常,表现为脑实质多发不规则密度减低区,脑沟变浅,MR显示病变为长T1长T2信号,DWI呈高信号,增强无明显强化;5例DR胸片异常,显示肺门周围磨玻璃样阴影,2例胸腔积液,1例CT扫描表现为斑片状模糊阴影;1例腹部CT平扫肝包膜下见多发新月形低密度区,增强动脉期低密度区强化不明显,门静脉期呈不均匀轻度强化,延迟期病灶缩窄呈细条状低密度区,其内见网格状改变.MR检查,病变呈长T1长T2不均匀信号影,增强静脉期病灶内缘近肝实质区可见带状不均匀强化区,外缘不强化,其内见网格状高信号影,延迟期低信号区变窄.结论 HELLP综合征的影像学表现具有特征性,特别是MR的敏感性更高.%Objective To investigate the imaging findings of HELLP syndrome. Methods Imaging findings of 8 patients with HELLP syndrome confirmed by clinical and laboratory data were retrospectively analyzed and the relevant literature was reviewed. Results Two cases presented cranial CT abnormalities with multiple irregular areas of low attenuation in the brain parenchyma and shallower cortical sulci. The lesions in MR showed long T1 , T2 signal and high DWI signal without enhancement. Five cases showed DR chest radiograph abnormalities with pcrihilar ground-glass shadow and two cases with plcural affusion, and one of the patients underwent CT scan showing slight patchy shadows. Another patient underwent abdominal CT scan showed multiple crescent-shaped low density areas in the liver subcapsulc and the areas were not enhanced in the arterial phase, slightly enhanced in the portal venous phase and displayed narrowing lesion with a thin strip of low-density area with grid. On MR imaging, the lesion showed long T1 and long T2 heterogeneous signal, no enhancement during the arterial phase, inhomogencous ribbon enhancement area was seen in the inner edge of the liver parenchyma during the venous phase, the outer edge of parenchyma did not show enhancement but with grid high signal within it, and narrowing low signal area was seen during the delay period. Conclusion The imaging findings of the HELLP syndrome have special characteristics, and MRI has higher sensitivity.
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