摘要
目的探讨高龄组胰腺实性假乳头状瘤的CT及MRI表现特征,提高对高龄人群胰腺实性假乳头状瘤的认识。方法回顾性分析9例经病理证实的影像学误诊高龄组实性假乳头状瘤的影像学表现(包括CT和MRI)。结果 CT组:共5例。病灶形态大小不一,其中2例病灶最长径>10cm,内部密度不均匀,可见囊性坏死成分、出血及钙化,3例病灶最长径<5cm,内部密度较均匀,具体成分分辨欠佳。5例病灶边界显示欠清晰。病灶增强后与正常胰腺组织相比:(1)强化程度较低;(2)强化峰值出现较晚。MRI组:共4例。病灶信号呈囊实性改变,其中3例病灶囊性成分可见分隔影,部分囊腔内信号不均匀,可见斑片状T2WI低信号;1例病灶囊性成分较均匀,无明显分隔或异常信号。4例病灶边界均可辨。增强后病灶实性成分渐进性强化。结论胰腺影像学检查结合临床资料,可以对高龄组胰腺实性假乳头状瘤做出术前诊断。
Objective To investigate CT and MRI features of solid pseudopapillary tumor of the pancreas in the elderly group. Methods Imaging findings in 9 elderly patients of solid pseudopapillary tumor of the pancreas confirmed by pathology and misdiagnosed by radiologic imaging(including CT and MRI). Results Group CT: A total of 5 cases. 2 cases were large(the longest diameter>10 cm), internal structure was uneven(cystic necrosis,hemorrhage and calcification could be observed. 3 cases were small(the longest diameter less than 5 cm), the internal structure was uniform. 5 cases of lesions showed less clear boundaries. After enhancing lesions compared with normal pancreatic tissue:(1) A low degree of enhancement.(2) Peak enhancement appeared later. Group MRI: A total of 4 cases. Showed a cystic lesion signal change, 3 cases of intracapsular lesions have separated, 1 case of cystic lesions more uniform composition. After enhancing solid components lesions progressive enhancement. Conclusion Preoperative diagnosis of solid pseudopapillary tumor of the pancreas in the elderly group could be marked by radiologic imaging.
作者
詹茜
王铁功
黄挺
ZHAN Qian;WANG Tie-gong;HUANG Ting(Department of Radiology, Shanghai Changhai Hospital, Shanghai 200433, China)
出处
《中国CT和MRI杂志》
2019年第7期89-91,95,共4页
Chinese Journal of CT and MRI
