胰腺实性假乳头状瘤CT和MRI诊断探讨

CT and MRI diagnosis of pancreatic solid pseudo papillary tumor

目的探讨胰腺实性假乳头状瘤的CT和MRI特征，为临床诊断提供依据。方法随机选取驻马店中心医院2013年3月至2015年1月收治的胰腺实性假乳头状瘤患者26例，其中24例行CT扫描，8例行MRI扫描，对其影像检查资料进行回顾性分析。结果26例胰腺实性假乳头状瘤包括10例胰头部，14例胰尾部，2例体尾部；肿瘤实质部分包括16例低密度，8例等密度，肿瘤囊性部分均为低密度；14例患者肿瘤内存在斑点状、小结节或细条状钙化影；8例行MRI扫描，其肿瘤实质部分的T1WI扫描呈现低信号，T2WI为高信号或等信号。其中4例增强扫描肿瘤实质部分呈现明显强化，6例存在完整包膜信号。结论胰腺实性假乳头状瘤多见于青年女性，其肿瘤呈现囊实性，多处于胰腺边缘，且肿瘤体积较大，钙化明显，根据其CT及MRI检查的典型表现可对其进行术前诊断，以为临床治疗和预后评估提供依据。

Objective To investigate the CT and MRI features of pancreatic solid pseudo papillary tumor, and provide the basis for clinical diagnosis. Methods From March 2013 to January 2015, 26 cases of pancreatic solid pseudo papillary tumor were randomly selected. Twenty-four cases had routine CT scans, and 8 cases had MRI scans. The image data were retrospectively analyzed. Results Among the 26 cases of pancreatic solid pseudo papillary tumor, 10 cases located at pancreatic head, 14 cases of pancreatic tail, two cases of the body and tail; the tumor parenchyma including 16 cases of low-density, 8 cases of equal density, and the cystic part of the tumor was low-density ; 14 patients with puuctate, small nodules or fine shaped calcification; 8 patients underwent MRI scans, the T1WI scanning showed low signal in tumor parenchyma, T2WI scanning showed high signal or equal signals. The enhanced scan of 4 eases showed significant enhancement, the presence of complete capsule signal in 6 cases. Conclusions Pancreatic solid pseudo papillary tumor occurred more common in young women, presenting cystic solid tumor, more located at the pancreas edges and the tumor size is large, with evident calcification, preoperative diagnosis can be made based on the typical CT and MRI performance, provide the basis for clinical treatment and prognosis evaluation.