摘要
目的探讨胸部良恶性病变的中小淋巴结的多层螺旋CT(MSCT)表现,提高对胸部中小淋巴结转移的认识。方法胸部良性病变和胸部恶性病变各30例行胸部MSCT检查,对两组胸部10mm以下的淋巴结进行观察,记录其形态、密度、数量、有无融合及位置,并进行对比分析。结果共观察到胸部良恶性病变中小淋巴结236枚,其中良性病变组142枚,恶性病变组94枚。良性病变组142枚淋巴结CT值为(17.1±22.6)Hu,有72(50%)枚淋巴结中间有低密度,5枚发生钙化,3枚发生融合,淋巴结形态非膨胀型形态(三角形、扁平形、不规则形、条形)共120(85%)枚,解剖分布多见于4R/L、5、6区淋巴结和双腋下淋巴结;恶性病变94枚淋巴结CT值(35.2±22.2)Hu;有18(19%)枚淋巴结中间有低密度,有11枚发生钙化,有3枚发生坏死,20枚发生融合,淋巴结膨胀型形态(圆形、椭圆形、边缘隆起三角形)共71(76%)枚,恶性病变组的中小淋巴结还可见分布于1、2R/L、7、8、10R/L区。结论对于胸部中小淋巴结,有恶性病变的病史,当中小淋巴结的密度较实、边界呈膨胀生长趋势、数个淋巴结有融合趋向、边缘模糊、或解剖分布于肺尖、上气管旁或食管旁时,要考虑到转移的可能。
Objective To investigate the CT feature of middle lymph node（≤10 mm） in benign and malignant thoracic lesion,in order to assess the value of CT in the differential diagnosis of benign and malignant middle lymph node.Methods Multi-slice spiral CT （MSCT） was performed in 30 cases of benign thoracic lesion and 30 cases of malignant thoracic lesion.The orphology,attenuation,number and distribution were ret respectively evaluated and analyzed.The CT manifestations of these two diseases were compared.Results Totally 236 of lymph nodes were evaluated.There were 142 nodes in benign thoracic lesion group.The CT value were （17.1 ± 22.6） Hu,50 % （72/142） lymph nodes showed fat attenuation in the node,5 lymph nodes had calcification,3 lymph nodes had nodal involvement,85% （120 /142） lymph nodes showed non-expansive shape.The nodal station 4R/L,5,6 were involved in benign thoracic lesion group.In malignant thoracic lesion group,94 lymph nodes were analyzed.The CT value were （5.2 ± 22.2） Hu.18（19% ） lymph nodes showed fat attenuation,11 lymph nodes had calcification,20 lymph nodes had nodal involvement.76% （71 /94） lymph nodes showed expansive shape.The nodal station 1,2 R/L,7,8,10 R/L were involved else.Conclusion Pykno-attenuation,nodal involvement,expansive shape are the characteristic features of metastasis middle lymph node of malignant thoracic lesion.
出处
《安徽医科大学学报》
CAS
北大核心
2010年第6期798-801,共4页
Acta Universitatis Medicinalis Anhui
