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目的探讨胰腺实性假乳头状瘤的CT表现,以提高对该病的认识及鉴别诊断水平。方法回顾分析经手术后病理组织学证实的14例胰腺实性假乳头状瘤患者的临床及影像学资料,患者均采用16层螺旋CT行上腹部平扫加三期增强扫描检查,扫描参数:管电压120kv,电流175mAs,层厚0.75mm,成像层厚5mm,于肘静脉用高压注射器注入非离子型对比剂欧乃派克90~120mL。结果 14例SPTP患者中8例位于胰腺头颈部,4例位于胰腺尾部,2例位于胰腺体部,直径3~12 cm。CT平扫表现为圆形、类圆形低密度影或混杂密度团块影,体积较大。增强扫描后实性部分及包膜可见逐渐强化,囊性部分无强化。结论胰腺实性假乳头状瘤螺旋CT有一定的特征性表现,有较高的临床诊断价值。
Objective To investigate the CT findings of solid pseudopapillary tumor of pancreas in order to improve its understanding and differential diagnosis. Methods The clinical and imaging data of 14 patients with solid pseudopapillary pancreatic tumors confirmed by histopathology were retrospectively analyzed. The patients underwent 16-slice spiral CT with enhanced upper abdomen and triple enhanced scanning. The scanning parameters: Tube voltage 120kv, current 175mAs, layer thickness 0.75mm, imaging layer thickness 5mm, in the elbow vein with high pressure syringe into the non-ionic contrast agent Europa Park 90 ~ 120mL. Results 8 of 14 patients with SPTP were located in the head and neck of pancreas, 4 in the tail of the pancreas, 2 in the body of the pancreas and 3 ~ 12 cm in diameter. CT scan showed round, similar to low-density round shadow or mixed density block shadow, larger. Enhance the solid part of the scan and the envelope can be seen gradually strengthened, cystic part without strengthening. Conclusion The solid pseudopapillary tumor of pancreas has some characteristic features and high clinical value.