脾硬化性血管瘤样结节性转化一例

Chinese Journal of Magnetic Resonance Imaging(2019)

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Abstract
患者女,51岁.因"发现脾脏占位1个月余"入院.查体:全身浅表淋巴结未触及肿大,心肺未见阳性体征,腹平软,无异常发现.实验室检查未见明显异常.CT平扫示脾脏内见一类圆形稍低密度灶,CT值约47 HU,边界欠清(图1);MRI示脾脏内见一类圆形占位,其大小约6.3 cm×5.6 cm×6.3 cm,T1WI呈稍低信号影,与T1WI同相位相比,反相位显示病变内局部呈相对稍高信号;FS-T2WI主体呈高信号,其内信号不均匀,见斑片状、条状低信号影;冠状位T2WI呈稍高信号影,其内见条状低信号影;DWI呈高或低混杂信号影;增强扫描动脉期显示病灶边缘环状强化和向心性辐条状强化,呈"辐轮征"改变;静脉期及延迟期显示病灶渐进性强化,中央瘢痕延迟强化(图2~5);手术及病理:腹腔镜术中探查脾下极见一大小约6.0 cm× 5.0 cm×4.0 cm质韧肿物,行脾脏切除术送病理.病理诊断:脾硬化性血管瘤样结节性转化(sclerosing angiomatoid nodular transformation,SANT)(图6).
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