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• Clinical Article •
The diagnosis value of 3.0 tesila MRI on cystic-solid masses of appendix and the misdiagnosis reason anaiysis
PENG Xiao-lan  CHEN Ting-ting  SHANG Xiang  CHEN Qiu-yan  WU Fu-lin  WEI Ding-tai 

DOI:10.12015/issn.1674-8034.2016.07.007.


[Abstract] Objective: To discuss the value of 3.0 tesila MRI in the diagnosis of cystic-solid masses of appendix. And, to analyse the causes of misdiagnosis of common accessories lesions like mature ovarian cystic teratoma, endometrisis cysts, cystadenoma, borderline cystadenoma and ovarian canner.Materials and Methods: A total of 125 lesions were collected in this study, all lesions were diagnosed as cystic-solid masses of appendix by postoperative pathology. The MRI manifestations were analyzed retrospectively, and the causes of misdiagnosis were summarized.Results: There were 84 benign lesions, 25 borderline lesions, and 16 maglignant lesions. Among all of the lesions, there were 104 lesions (83.2%) were diagnosed accurately by MRI, 21 lesions (16.8%) were misdiagnosed. Thirteen in 16 maglignant lesions of MRI staging were coincide well with pathological staging, however, 3 lesions of MRI staging was lighter than pathological staging. The ADC value was statistically significant among benign (1.325×10-3 mm/s), borderline (1.081×10-3 mm/s) and malignant lesions (0.928×10-3 mm/s) groups (P<0.05).Conclusions: Although benign and malignant (especially the borderline) cystic-solid lesions of appendix on MRI have certain overlap, the diagnostive value for cystic-solid masses of appendix on 3.0 tesila MR was high. Some of the cystic-solid lesions have particular characteristics in MR imagings. To analyse and summarize the reasons for misdiagnosed cases could be useful for improving the accuracy of diagnosis.
[Keywords] Magnetic resonance imaging；Adnexal diseases；Cysts；Neoplasms

PENG Xiao-lan Department of Radiology, The Affiliated Ningde Municipal Hospital of Fujian Medical University, Ningde 352100, China

CHEN Ting-ting Department of Radiology, The Affiliated Ningde Municipal Hospital of Fujian Medical University, Ningde 352100, China

SHANG Xiang Department of Radiology, The Affiliated Ningde Municipal Hospital of Fujian Medical University, Ningde 352100, China

CHEN Qiu-yan Department of Radiology, The Affiliated Ningde Municipal Hospital of Fujian Medical University, Ningde 352100, China

WU Fu-lin Department of Radiology, The Affiliated Ningde Municipal Hospital of Fujian Medical University, Ningde 352100, China

WEI Ding-tai* Department of Radiology, The Affiliated Ningde Municipal Hospital of Fujian Medical University, Ningde 352100, China

*Correspondence to: Wei DT, E-mail: wdtai@163.com

Conflicts of interest   None.

ACKNOWLEDGMENTS  Project is supported by Health and Family Planning Commission of Fujian province youth scientific research subject No. 2015-2-33
Received  2016-04-02
Accepted  2015-05-18
DOI: 10.12015/issn.1674-8034.2016.07.007
DOI:10.12015/issn.1674-8034.2016.07.007.

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