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Ultrasonography compared with magnetic resonance imaging for the diagnosis of struma ovarii: Correlation with histopathology
CHEN Fengying  ZHANG Dawei  ZHANG Ying  HUANG Wubin  XU Zhifeng 

Cite this article as: Chen FY, Zhang DW, Zhang Y, et al. Ultrasonography compared with magnetic resonance imaging for the diagnosis of struma ovarii: Correlation with histopathology. Chin J Magn Reson Imaging, 2019, 10(12): 913-916. DOI:10.12015/issn.1674-8034.2019.12.008.


[Abstract] Objective: To analyze the ultrasound and MR features of struma ovarii(SO), and to evaluate the diagnostic efficacy of the two examinations for SO.Materials and Methods: The study included 24 SO cases and 72 control cases who underwent both ultrasound and MRI examinations before surgery. The imaging manifestations and pathological results of SO were compared retrospectively.Results: On ultrasound and MR imaging, the common appearance of SO was a multi-lobulated cystic or cystic-solid mass, with variable echo or signal intensity in cystic components, and rich blood flow or significant enhancement in solid components. The most specific feature was the "roundish white ball" on ultrasound and the low signal "struma pearl" on MR images. The sensitivity, specificity, Youden index were 37.50%, 90.78%, 0.28 for ultrasound, and 79.17%, 94.44%, 0.74 for MRI, respectively.Conclusions: Both ultrasound and MR could manifest some characteristic imaging features of SO, but the sensitivity and diagnostic efficacy of MRI was significantly superior than that of ultrasound. MR imaging could help ultrasound improve the detection of SO.
[Keywords] struma ovarii；magnetic resonance imaging；ultrasonography

CHEN Fengying Department of Radiology, Foshan Women and Children Hospital Affiliated to Southern Medical University, Foshan 528000, China

ZHANG Dawei Department of Radiology, Foshan Women and Children Hospital Affiliated to Southern Medical University, Foshan 528000, China

ZHANG Ying Department of Radiology, Foshan Women and Children Hospital Affiliated to Southern Medical University, Foshan 528000, China

HUANG Wubin Department of Radiology, Foshan Women and Children Hospital Affiliated to Southern Medical University, Foshan 528000, China

XU Zhifeng * Department of Radiology, the First People’s Hospital of Foshan, Foshan 528000, China

*Correspondence to: Xu ZF, E-mail:xuzf83@126.com

Conflicts of interest   None.

ACKNOWLEDGMENTS  This work was part of Guangdong Province Medical Research Found No.B2019161 Scientific and Technological Projects of Foshan No.2018AB000221
Received  2019-06-26
DOI: 10.12015/issn.1674-8034.2019.12.008
Cite this article as: Chen FY, Zhang DW, Zhang Y, et al. Ultrasonography compared with magnetic resonance imaging for the diagnosis of struma ovarii: Correlation with histopathology. Chin J Magn Reson Imaging, 2019, 10(12): 913-916. DOI:10.12015/issn.1674-8034.2019.12.008.

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