Zhong Yan, Wang Hai-Yi, Linghu En-Qiang, Sun Yu-Fa, Xu Wei, Ma Lu, Ye Hui-Yi
Department of Radiology,Hainan Branch of Chinese PLA General Hospital,Sanya,Hainan 572013,China.
Department of Radiology, Chinese PLA General Hospital,Beijing 100853,China.
Zhongguo Yi Xue Ke Xue Yuan Xue Bao. 2017 Aug 20;39(4):471-476. doi: 10.3881/j.issn.1000-503X.2017.04.003.
Objective To analyze the clinical and magnetic resonance imaging(MRI)findings of solid pseudopapillary tumor(SPT)of the pancreas in male patients. Methods Clinical and MRI features of 51 patients with pathologically-proved SPT were retrospectively analyzed.The following MRI features of the lesions were analyzed:location,maximal diameter,shape,margin,capsule,solid and cystic components,signal intensity characteristics,and enhancement patterns.Results The average maximal diameter of the SPT in male patients was significantly smaller [(3.9±1.6)cm vs.(6.3±3.9)cm,P=0.035]than that of SPT in female patients.Pure solid tumors were signiciantly more common in male patients(8/14)than in female patients(9/37)(P=0.037).T-weighted images of SPT showed mainly homogenous hypo-intensity in male patients(11/14)and heterogeneous hypo-intensity in female patients(23/37)(P=0.001).Hemorrhage was more prevalent in female patients(22/37)than in male patients(2/14)(P=0.005).There were no significant differences between male and female patients regarding clinical features and other magnetic resonance features(P>0.05).Conclusions On MRI,SPT in male patients is small and shows mainly pure solid component with rare hemorrhage.The clinical and other MRI features of SPT are not different between males and females.
目的 分析男性胰腺实性假乳头状瘤（SPT）的临床及磁共振成像（MRI）表现。方法 回顾性分析51例经病理证实的SPT患者的临床及MRI特征。分析病变的以下MRI特征：位置、最大直径、形态、边缘、包膜、实性和囊性成分、信号强度特征及强化方式。结果 男性患者SPT的平均最大直径显著小于女性患者[（3.9±1.6）cm对（6.3±3.9）cm，P = 0.035]。男性患者中纯实性肿瘤（8/14）比女性患者（9/37）更常见（P = 0.037）。男性患者SPT的T加权图像主要表现为均匀低信号（11/14），而女性患者为不均匀低信号（23/37）（P = 0.001）。女性患者（22/37）出血比男性患者（2/14）更常见（P = 0.005）。男性和女性患者在临床特征及其他磁共振特征方面无显著差异（P>0.05）。结论 在MRI上，男性患者的SPT较小，主要表现为纯实性成分且出血罕见。SPT的临床及其他MRI特征在男性和女性之间无差异。
