结直肠癌肝转移的超声诊断

Ultrasonic diagnosis of liver metastasis of colorectal cancer

目的通过结直肠癌肝转移超声图像分析,为根据肝脏转移灶发现肠道原发灶提供一些依据。方法对我院全国中医肛肠中心结直肠癌38例患者,共79个肝脏转移灶的超声图像及临床资料进行回顾性分析。结果肝脏转移灶形状规则72个,占91. 1%;全部病灶均边缘清晰,可见声晕(宽度2～5mm 69个);病灶内部回声均匀52个,无回声3个,周边见强回声边缘,高回声39个,混合回声19个(囊性液化11个,伴钙化灶2个);彩色血流绕行血流58个,占73. 4%。结论超声检查发现结直肠癌肝转移灶有其特点,形状规则,边缘清晰,可见晕圈,病灶内部回声均匀,高回声为主,少数为无回声,周边见强回声边缘,混合回声中常伴囊性液化,极少伴钙化灶;多数病灶为绕行血流。

Objective The analysis of the hepatic metastasis of colorectal cancer provides some evidences for finding the primary intestinal lesion in the liver metastases. Methods The ultrasound images and clinical data of 79 liver metastases from 38 patients with colorectal cancer in Anorectal Center in our hospital were analyzed retrospectively. Results The shape rule of liver metastasis was 72,accounting for 91. 1%. All lesions were clear margin,visible sound halo( width 2-5 mm 69),the lesion internal echo 52,no echo 3,peripheral see strong echo Edge,high echo 39,mixed echo19( cystic liquefaction11,with calcification of 2);Color blood flow bypass blood flow 58,accounting for 73. 4%. Conclusion Ultrasonography revealed that liver metastasis of colorectal cancer has its characteristics,the shape rule,the edge is clear,the visible halo circle,the lesion internal echo uniformity,the high echo is mainly,the few is no echo,the periphery sees strong echo edge,the mixed echo often accompanies the cystic liquefaction,very few with the calcification stove,most lesions are the bypass blood flow.