摘要
目的探讨胰腺实性-假乳头状瘤的超声诊断、鉴别诊断及声像图分型。方法回顾性分析经手术和病理证实的9例胰腺实性-假乳头状瘤的二维声像与彩色多普勒血流显像表现及有关临床资料;部分病例与CT检查进行对照。结果二维超声瘤体可表现为境界清楚、边缘规则的圆形实性、囊实混合性或囊性团块,其中实性1例,囊、实混合性7例,囊性1例;瘤体均具有包膜,其完整者7例,局部不连续和中断者各1例。彩色多普勒血流显像5例检出血流信号,其中血流信号Ⅰ级3例,Ⅱ级1例,Ⅲ级1例;动脉血流峰值流速8.6～33.2cm/s,其中小于20cm/s3例;阻力指数范围0.38～0.56,其中小于0.5者3例。依据该肿瘤的声像图特点结合有关文献,将其分为实性均质型、囊实混合型和类囊肿型三类。结论胰腺实性-假乳头状肿瘤二维声像和彩色多普勒血流显像表现有一定的特征,超声检查对其诊断与鉴别诊断具有重要价值。
Objective To study the sonographic features of solid-pseudopapillary tumors of the pancreas(SPTP) and to explore the value of ultrasound in the dignosis,differential dignosis and type of SPTP.Methods B-mode ultrasonography and color Doppler flow imaging(CDFI) of nine cases of SPTP confirmed by clinical and pathology were enrolled in the study and some cases were compared with the findings of computed tomography (CT).Results On B-mode ultrasound images,tumors showed solid,solid and cystic alternative distributions or cystic structures,presenting as round or oval shape,well-defined margins.Of these nine lesions,one was mainly composed of solid part,seven showed solid tumor with cystic component inside and one showed cystic tumor.All tumors were encapsulated.The encapsulation was completive in seven cases,incontinuous in one case and interruptive in one case.In CDFI,blood flow was found in five cases, three cases were I-brand,one case was II-brand,one case was III-brand.The peak systolic velocity ranged from 8.6 cm/s to 33.2 cm/s,three cases were less than 20 cm/s.Resistance index(RI) varied from 0.38 to 0.56 and three cases were lower than 0.5.According to the sonographic features of SPTP,combined with related reviews about the tumor,those masses were classified into three types as homogeneous solid,solid and cystic alternative distributions and cystic tumor.Conclusions The B-mode ultrasound and CDFI characteristic findings might be of great value in dignosis and differential dignosis of SPTP.
出处
《中华超声影像学杂志》
CSCD
2005年第7期526-528,共3页
Chinese Journal of Ultrasonography
