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CT and MRI imaging characteristics of peripheral schwannoma in different location
CHEN Ling  ZHOU Yunfeng  WU Chen  ZHANG Chao  CHENG Liang  ZHOU Fengfeng  CHEN Yadi 

Cite this article as: Chen L, Zhou YF, Wu C, et al. CT and MRI imaging characteristics of peripheral schwannoma in different location. Chin J Magn Reson Imaging, 2020, 11(2): 145-148. DOI:10.12015/issn.1674-8034.2020.02.014.


[Abstract] Objective: To analyse the CT and MRI imaging characteristics of peripheral schwannoma in different locations and improve the accuracy of preoperative diagnosis.Materials and Methods: 109 cases of peripheral schwannoma confirmed by pathology were collected and location, shape, size, CT and MRI imaging feature were analysed.Results: 109 cases were located in the extremities (n=34), neck (n=21), chest wall (n=17), retroperitoneum (n=15), stomach wall (n=10), and other rare sites (n=12). The tumors tended to be elliptic (82/113) and round (27/113) in shape, with clear and smooth boundaries. Lesions in the extremities, neck and chest wall (67/75) were extending along the nerve distribution. Lesions located in extremities presented as the split fat sign, entering and exiting nerve signs and target signs. Lesions located in neck and chest wall presented as typical manifestations of CT and MRI, which including homogeneous hypodense on CT or isointense on T1WI and target sign on T2WI or multiphase enhanced CT. The atypical manifestations of CT and MRI occurred in pelvic and retroperitoneal, which presented as multilocular or thick-walled cystic density or intense and heterogeneous delayed enhancement. Lesions located in stomach wall presented as isodense, with obvious homogeneous delayed enhancement.Conclusions: The imaging characteristics of peripheral schwannoma in different locations are similar, but the CT and MRI manifestations were different according to the different locations and examination methods. It’s useful to recognize CT and MRI imaging characteristics for preoperative diagnosis.
[Keywords] peripheral schwannoma；computed tomography；magnetic resonance imaging

CHEN Ling Medical Imaging Center, Yijishan Hospital of Wannan Medical College, Wuhu 241000, China

ZHOU Yunfeng* Medical Imaging Center, Yijishan Hospital of Wannan Medical College, Wuhu 241000, China

WU Chen Medical Imaging Center, Yijishan Hospital of Wannan Medical College, Wuhu 241000, China

ZHANG Chao Medical Imaging Center, Yijishan Hospital of Wannan Medical College, Wuhu 241000, China

CHENG Liang Medical Imaging Center, Yijishan Hospital of Wannan Medical College, Wuhu 241000, China

ZHOU Fengfeng Medical Imaging Center, Yijishan Hospital of Wannan Medical College, Wuhu 241000, China

CHEN Yadi Medical Imaging Center, Yijishan Hospital of Wannan Medical College, Wuhu 241000, China

*Correspondence to: Zhou YF, E-mail: zhouyunfeng808@qq.com

Conflicts of interest   None.

Received  2019-07-01
Accepted  2019-09-06
DOI: 10.12015/issn.1674-8034.2020.02.014
Cite this article as: Chen L, Zhou YF, Wu C, et al. CT and MRI imaging characteristics of peripheral schwannoma in different location. Chin J Magn Reson Imaging, 2020, 11(2): 145-148. DOI:10.12015/issn.1674-8034.2020.02.014.

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