胰腺实性假乳头状瘤CT征象分析

目的:回顾性分析胰腺实性假乳头状瘤的CT表现特征,探讨多层螺旋CT对该肿瘤的诊断价值。方法:搜集本院经手术、病理证实的9例胰腺实性假乳头状瘤患者的临床资料及CT表现,并分析其特征。结果:肿块5例位于胰头部,4例位于胰尾,直径约3.1~6.2 cm。肿瘤全部由实性及囊性成分构成,以实性为主者5例,其内伴少量低密度区,其中1例可见点片状钙化;以囊性成分为主者2例,在囊性成分边缘可见实性结节;其余2例为囊实混合成分,比例不一,其中1例可见胰管扩张征象。动态增强扫描实性部分静脉期比动脉期明显强化,且各期肿块增强后CT值均低于胰腺实质,囊性部分无强化。结论:胰腺实性假乳头状瘤的CT表现特征明显,对临床诊断及治疗具有重要指导意义。

CT Findings Analysis of Solid Pseudopapillary Tumor of the Pancreas

Objective To analyze the CT features of the solid pseudopapillary tumors of the pancreas(SPTP) and to explore the diagnostic value of multi-slice CT(MSCT).Methods The clinical date and CT findings of 9 patients with SPTP confirmed by pathology were analyzed.Results The neoplasms were located at the head(n = 5) and tail(n = 4) of the pancreas.The long-axis diameters ranged from 3.1 to 6.2 cm.All of the tumors were composed of solid and cystic components,5 cases were mostly solid components,1 case were contained calcified speckles,2 cases were mostly cystic components,and the margin showed solid nodules.The other 2 cases were mixed cystic and solid components with different proportion,1 case displayed signs of pancreatic duct dilatation.The value of solid portions with dynamic enhanced scan CT was significantly higher in intravenous phase than in arterial phase,but lower than the normal pancreatic parenchyma in those two phases,and cystic components had no intensification.Conclusion CT could be an effective method for diagnosis and treatment of SPTP with its distinctive manifestations.