痛风结节的CT和MRI表现
胡亚彬;高燕燕;刘吉华;何树刚;刘世合;段峰;杨青
【期刊名称】《实用放射学杂志》 【年(卷),期】2013(029)002
【摘要】目的 分析痛风结节的CT和MRI表现,探讨其特征性影像表现.方法 对23例临床确诊为痛风性关节炎的病人的病变关节行CT和MR检查,CT检查14个膝关节,26个踝关节,MR检查6个膝关节,15个踝关节.将痛风结节分为骨内组、邻骨组和骨外组,总结其影像学特征.结果 CT共显示104个痛风结节,MR显示47个.骨内组15个,11个分布于关节骨端周缘,7个表现为分叶状,9个结节内显示砂石样高密度,12个边缘显示翘起的薄如蛋壳样骨皮质,MR上7个周围显示骨髓水肿信号;邻骨组86个,69个分布于韧带和(或)肌腱上,30个表现为条块状,36个结节内显示砂石样高密度,26个相邻骨质显示弧形骨质破环.MR上22个痛风结节为长T1短T2信号,在脂肪抑制T2WI上为混杂信号,21个周围显示骨髓水肿信号,31个显示周围软组织水肿;骨外组3个.结论 痛风结节好发于韧带和肌腱,多呈条块状并邻骨质生长,周围骨质多显示弧形和波浪状骨质破坏,内多显示砂石样高密度,周围常显示骨髓水肿信号和软组织水肿.%Objective To explore CT and MR imaging findings of tophus. Methods 23 patients with gouty arthritis proved clinically underwent C T ( 14 knee joints and 26 ankle joints) and MRI ( 6 knee joints and 15 ankle joints) examinations. All the tophus were divided into three groups: intraosscous tophus, juxta-osscous tophus, cxtraosscous tophus. CT and MR imaging findings were analysed. Results CT showed 104 tophus and
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