目的 探讨上臂Kimura病的MRI表现,并对其临床特征进行分析,以便提高对本病的认识.方法 收集我院2014年6月~2016年7月间经手术病理证实的3例上臂Kimura病患者的临床及磁共振资料,着重分析病变的临床特征、MRI表现,并对文献进行复习.结果 1)3例患者中,2例女性,1例男性,年龄12~27岁,病程1月~1年,均表现为皮下肿物,质地韧,边界清,活动度可,无痛或轻度触压痛,局部皮肤颜色无异常;2)3例患者中,2例血常规嗜酸性粒细胞计数及比例增高,分别为1.35×109/L 、21.11%和1.30×109/L、16.50%,1例在正常值范围;3)3例患者均表现为上臂内侧皮下类圆形或椭圆形软组织肿块,T1WI呈略低信号影,T2WI呈略高信号影,边界清晰,信号均匀,1例行DWI扫描呈高信号影,ADC值为0.550×10-3 mm2/s,其中2例周围脂肪组织内见条索状水肿信号影.结论 上臂Kimura病MRI具有一定特征,需结合临床及实验室检查,提高诊断准确性,确诊仍需病理组织学检查.
Objective To study the MRI manifestations of Kimura disease in upper arm, and to analyze its clinical features in order to improve the understanding of the disease.Methods 3 cases with arm Kimura disease were collected in our hospital from June 2014 to July 2016, which were confirmed pathologically.We focused on the analysis of the clinical features and MRI manifestations of the disease, and review of literatures.Results There were 3 patients, 2 females, 1 male, aged 12 to 27 years, with history of 1 month to 1 year.All showed subcutaneous tumor, tough texture, border clearance.The activity can be painless or mild touch tenderness, local skin color without exception;2) In 3 patients, blood eosinophil count in two cases increased, the proportion was 1.35×109/L, 21.11% and 1.30×109/L, 16.50%, 1 case was in normal range;3) All 3 patients showed the inside of the upper arm subcutaneous round or oval soft tissue mass, T1WI showed slightly lower signal intensity, T2WI showed slightly higher signal intensity, clear boundary, uniform signal, a routine DWI scan showed high signal.ADC value was 0.550h 10-3 mm2/s.The streak edema signal intentity can be seen around adipose tissue in two cases.Conclusion The upper arm Kimura disease MRI has certain characteristics, requires a combination of clinical and laboratory tests to improve diagnostic accuracy, the diagnosis remains histological examination.