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中华消化病与影像杂志(电子版) ›› 2018, Vol. 08 ›› Issue (01) : 11 -14. doi: 10.3877/cma.j.issn.2095-2015.2018.01.003

所属专题: 文献

临床研究

非功能性胰腺神经内分泌瘤的CT表现
王德广1,(), 孙振环1, 孙仁华1   
  1. 1. 264200 山东威海,解放军第404医院影像科
  • 收稿日期:2016-07-17 出版日期:2018-02-01
  • 通信作者: 王德广

CT findings of non-functional neuroendocrine neoplasm of the pancreas

Deguang Wang1,(), Zhenhuan Sun1, Renhua Sun1   

  1. 1. Department of Radiology, PLA 404 Hospital, Weihai 264200, china
  • Received:2016-07-17 Published:2018-02-01
  • Corresponding author: Deguang Wang
  • About author:
    Corresponding author: Wang Deguang, Email:
引用本文:

王德广, 孙振环, 孙仁华. 非功能性胰腺神经内分泌瘤的CT表现[J]. 中华消化病与影像杂志(电子版), 2018, 08(01): 11-14.

Deguang Wang, Zhenhuan Sun, Renhua Sun. CT findings of non-functional neuroendocrine neoplasm of the pancreas[J]. Chinese Journal of Digestion and Medical Imageology(Electronic Edition), 2018, 08(01): 11-14.

目的

分析非功能性胰腺神经内分泌肿瘤的多排螺旋CT表现。

方法

收集2003年5月至2015年6月解放军第404医院经临床和手术病理确诊为非功能性胰腺神经内分泌肿瘤且术前在本院行上腹部增强CT检查的患者15例。回顾性分析其多排螺旋CT图像,主要观察肿瘤的数目、位置、形状、大小、密度及强化方式等。

结果

15例均为胰腺单发肿瘤,发生于胰体部7例、头部5例、尾部3例。肿瘤呈圆形或类圆形,平均直径3.8 cm。CT平扫11例表现为稍低密度影,2例表现为等密度,2例表现为囊性病灶。增强后3例表现为等密度强化,6例为低密度强化,5例为高密度强化,1例囊性病灶无强化。5例可见胰管扩张,肝转移瘤见于1例患者,增强后呈环形强化。

结论

非功能性胰腺神经内分泌肿瘤的多排螺旋CT表现具有一定特点,但其鉴别诊断较难,需结合影像学表现和临床信息判断。

Objective

To analyze the multi-detector CT(MDCT)features of non-functional neuroendocrine neoplasms of pancreas(pNEN).

Methods

A total of 15 patients with non-functional pNEN proved by operation and pathology were collected from May 2003 to June 2015 in PLA 404 Hospital.All the patients received upper abdominal enhancement CT examination in our hospital before operation.The MDCT features were analyzed retrospectively.The lesions number, location, shape, size, density, enhancement patterns and other changes on contrast-enhanced MDCT images were observed.

Results

All of the 15 cases were single tumor of pancreas, and the tumors were found in the pancreas body in 7 cases, pancreas head in 5 cases, and the pancreas tail in 3 cases.The tumors were round or oval, with a mean size of 3.8 cm in diameter.On plain CT scan, 11 cases demonstrated slightly hypodensity, 2 cases isodensity and 2 cases mainly cystic changes.Slight, moderate and marked enhancements were noted in 6, 3 and 5 cases respectively on enhancement scan.One cystic lesion had no enhancement.Five cases had distal pancreatic duct dilation.Liver metastases were found in 1 patients, which manifested ring-like enhancement.

Conclusion

Non-functional pNEN has some characteristics on MDCT images.For the differential diagnosis, clinicians should combine the imaging findings and clinical information.

图3 同一患者CT增强检查无强化,磁共振检查T1WI为低信号,T2WI为稍高信号,DWI为高信号,边界清楚,动态增强检查边缘可见中度强化
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