小肝癌的超声回声特性与病理组织学的对比分析

Characteristics of Ultrasonic Echo of Small Hepatocellular Carcinoma Compared With Histopathologic Findings

目的 :探讨小肝癌的回声特性与病理改变及组织学分型的关系。方法 :对超声检出的 6 5例小肝癌 (≤3.0cm)的回声特性与其术后病理组织学改变和病理分型进行对比分析。结果 :超声检出的小肝癌以低回声型最多见 ,高回声型次之。随着癌结节的增大 ,低回声型递减 ,高回声型渐增 ;脂肪变性或假腺样改变在高回声型中的比率较大 ,但是同样的病理改变也可以出现在低回声型中。在小肝癌的组织分型中 ,含有腔隙结构 (血窦或腺管样扩张 )的管外型和假腺型可见于强弱不同的回声型中 ,不含和很少含有血窦的硬化型和紧密型 ,则集中于低回声型中。瘤内血管增生则以等回声型最多见。结论 :小肝癌回声强弱主要与病理改变中的脂肪变性或假腺样改变和组织构型中的腔隙样结构是否存在及其大小有关。

﨩bjective: Our aim was to evaluate the correlation betwee n the characteristics of ultrasonic echo of small hepatocellular carcinoma (HCCs ), histological types,and pathological changes. [WT5'HZ]Methods: [WT5'BZ]Chara cteristics of ultrasonic echo of HCCs (≤3.0 cm in nodule diameter) were analyze d in 65 patients.Its histopathological types and changes were also observed. [WT 5'HZ]Results: [WT5'BZ]The hypoechoic nodule was the most common in the HCCs an d the hyperechoic nodule was the next. The bigger the nodule, the more the hyper echoic HCCs and the less the hypoechoic ones. Fatty metamorphosis and pseudoglan dular change had a high percentage in the hyperechoic nodules. In the histopatho logical types of HCCs, trabecular and pseudoglandular ones that had lacuna (sinu soid or crypt like dilation) were found in the isoechoic nodules. Cirrhosis and compact ones that had no sinusoid were usually found in the hypoechoic nodules. The frequency of peliotic change was the highest in the isoechoic nodules. [WT5 'HZ]Conclusion: [WT5'BZ]The echo intensity of HCCs was closely related to the fatty metamorphosis, pseudoglandular changes, crypt-like structure, and its siz e. Peliotic change may be the pathological basis of the isoechoic HCCs.