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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 investigate the ultrasound diagnosis, differential diagnosis and sonography of pancreatic solid-pseudopapillary tumor. Methods The clinical manifestations and clinical data of 9 cases of solid pancreatic pseudopapillary tumors confirmed by surgery and pathology were analyzed retrospectively. Some cases were compared with CT examination. Results The two-dimensional ultrasound tumor could be characterized by a round, solid or cystic mass with clear border and regularity, including 1 case of solidity, 7 cases of cyst and real mixedness and 1 case of cystic tumor. The body has a capsule, the complete in 7 cases, partial discontinuity and interruption in 1 case. Blood flow signals were detected in 5 cases of color Doppler flow imaging, of which 1 was grade Ⅰ, 1 was grade Ⅱ and 1 was grade Ⅲ. The peak velocity of arterial flow was 8.6 ~ 33.2cm / s, of which less than 20cm / s3 cases; resistance index range 0.38 ~ 0.56, of which less than 0.5 in 3 cases. According to the tumor’s sonographic features combined with the relevant literature, it is divided into three types of solid homozygosis, cyst and cystoid cysts. Conclusions Two-dimensional and color Doppler flow imaging of solid-pseudopapillary tumors has certain characteristics. Ultrasonography is of great value in the diagnosis and differential diagnosis of pancreatic solid-pseudopapillary tumors.