超声在肝脏囊性恶性肿瘤诊断中的应用

目的 探讨灰阶及彩色多普勒超声对肝脏囊性恶性肿瘤的临床诊断价值。方法 分析了16例肝脏囊性恶性肿瘤的灰阶及彩色多普勒特征。其中肝脏原发肿瘤8例,转移性肝肿瘤8例。灰阶超声观察肿瘤的大小、形态、数目、囊壁的厚度及内部回声,多普勒超声观察肿瘤的供血状况并测定其流速。结果 原发肿瘤以单发病灶多见,转移性肿瘤以多发病灶多见。肿瘤直径为1.9-13.6cm。8例呈类圆形,5例为不规则形,3例呈分叶状。15例表现为囊壁不规则增厚,7例内有厚分隔,6例可见向囊腔内突起的乳头样结节。彩色多普勒显示14例于壁内、乳头结节内或分隔上引出血流信号,其中13例为搏动性血流信号。结论 肝脏囊性恶性肿瘤的灰阶超声表现为厚壁不规则的囊性病变,彩色多普勒能够较好地反映其囊壁、分隔及乳头内的血流信号,为肝脏囊性恶性肿瘤的诊断提供了重要依据。

Ultrasonography in the diagnosis of hepatic malignant cystic tumors

Objective To evaluate the clinical application of gray scale and color Doppler sonography in the diagnosis of hepatic malignant cy stic tumors. Methods Characteristics of gray scale and color Doppler sonography were studied in 16 cases of malignant hepatic tumors confirmed by pathology . Tumor size, sha pe, number of lesion, thicKness of cy stic wall and echogenecity o f the lesion were observed with gray scale sonography . Blood supply of the tumo r and its velocity were abserved with Color Doppler sonography . Results One single lesion was common in primary malignancy while multiple lesions signif ied metastasis. Sonographic findings revealed that the shape of the tumor was sp heroid in 8 cases, irregular in 5 and leaf shaped in 3, with the diameter vary i ng from 1.9 cm to 13.6 cm. Sonography showed malignant cy stic tumor with irregu lar thicK wall in 15 cases, multiple septa i n 7 cases and papillary projections in 6 on gray scale. Color Doppler flow signal wa s detected in the irregular thicK wall, multiple septa or papillary projection s in 14 cases, of which the arterial blood flow signals were demonstrated in 13 . Conclusion Color Doppler is able to clearly detect the blood flow signals in the irregular thicK wall, multiple septa or papillary projections, providing an important sign for the diagnosis of hepatic malignant cy stic tumors.