晕征在诊断肝良恶性肿瘤中的价值──超声、CT、CT动脉造影的比较

本文目的在于评价晕征在诊断肝良、恶性病变中的价值。重点对肝癌的表现进行了讨论，阐明了晕征对诊断肝癌的意义并将晕征在超声、CT及CTA的表现进行了比较。材料与方法：71例肝占位性病变病人行超声检查，其中对26例有低回声晕征者还作了CT及CTA检查。结果：71例病人中超声表现为强回声40例，低回声26例，等回声3例，混合回声2例。原发性肝癌41例，有晕征者24例，且多为强回声型（56．1％）。11例肝转移癌中6例有晕征（54．5％），余13例肝血管瘤及6例肝脓肿有晕征者各1例。结论：本文结果表明晕征对区别肝良、恶性病变十分有价值，对肝癌的定性诊断很有帮助，尤其对以强回声为主要表现的病变，其作用更为重要。

The Value of Halo Sign in Distinction Between Benign and Malignant Liver Tumors: In Comparison with US and CT, CTA

The purpose of this paper was to evaluate thd diagnostic value of the halo aign (on US,CT and CTA) in distinguishing between benign and malignant lesions of the liver.71 patients with liver occupying lesiofls were performed with US and 26 with halo sign of them were performed with CT and CT angiography.The res ult showed that of the 71 cases, 40 were hyperechoic, 26 were hypoechoic, three were isoechoic and two were mixechoic. 41 with PHC, 24 of them had halo sign, and most were hyperechoic (56. 1 %). 11 with metastases, and 6 of them had halo (54.5%). One of l3 hemangiomas and 6 abscesses had a halo sign, respectively.Conclusion: The results of the paper showed that the hypoechoic halo sign on sonograms is very useful to distinguish benign and malignant lesions of the liver, especially in the lesions with hyperechoic.