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目的探讨胰腺实性假乳头状瘤的CT和MRI表现。方法回顾性分析经手术病理证实的16例胰腺实性假乳头状瘤的影像资料。其中,CT扫描10例,MR扫描2例,CT和MR同时扫描者4例。结果 15例为女性(16岁及55岁),1例为男性(36岁)。3例肿瘤以囊性成分为主,8例实、囊成分比例相仿;5例以实性成分为主;全部16例SPTP均见到由包膜、肿瘤实质、囊性区3种结构构成的不均匀密度影;6例有钙化。CT增强扫描门静脉期肿瘤强化略高于动脉期,但其强化程度均低于正常胰腺组织。MRI 6例在T1WI、T2WI上呈混杂信号,实性成分在T1WI呈中低信号,T2WI呈中高信号,增强扫描呈不均性的中高强化。2例有出血。结论胰腺实性假乳头状瘤的CT、MRI表现有一定特征性,
Objective To investigate the CT and MRI findings of solid pseudopapillary tumors of the pancreas. Methods The clinical data of 16 cases of solid pseudopapillary pancreatic tumors confirmed by surgery and pathology were retrospectively analyzed. Among them, CT scan in 10 cases, MR scan in 2 cases, CT and MR simultaneous scan in 4 cases. Results Fifteen were female (16 and 55 years old) and one male (36 years). The tumor was mainly composed of cystic components in 3 cases, and the proportion of solid and cystic components in 8 cases was similar. Five cases were mainly composed of solid components. All 16 cases of SPTP were composed of three kinds of structures of capsule, tumor and cystic area Uneven density; 6 cases of calcification. CT enhanced portal vein tumor enhanced slightly higher than the arterial phase, but the degree of enhancement were lower than normal pancreatic tissue. Six cases of MRI showed mixed signals on T1WI and T2WI. The real components were moderate and low on T1WI, moderate and high on T2WI, and medium and high on non-uniform enhancement. 2 patients had bleeding. Conclusion The CT and MRI manifestations of solid pseudopapillary pancreatic tumors have certain characteristics,