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• Clinical Article •
The difference of surrounding edema between benign tmor-tumor-like lesions and malignant tumors: Evaluated by MRI
GAO Sai  YANG Zhitao  LI Xiang  CHEN Haisong  XU Wenjian 

Cite this article as: Gao S, Yang ZT, Li X, et al. The difference of surrounding edema between benign tmor-tumor-like lesions and malignant tumors: evaluated by MRI. Chin J Magn Reson Imaging, 2019, 10(6): 430-434. DOI:10.12015/issn.1674-8034.2019.06.007.


[Abstract] Objective: To analyze the differences of surrounding marrow and soft tissue edema between benign bone tumor-tumor-like lesions and malignant bone tumors, in order to help differentiate the benign and malignant.Materials and Methods: 121 cases of bone tumors and tumor like lesions confirmed by surgery were retrospective reviewed, according to pathology. The lesions were divided into the benign group and malignant group. The incidences of bone marrow and soft tissue edema around the lesion were analyzed. The ratio of the largest diameter of bone marrow and soft tissue edema to the largest diameter of tumor was calculated. The data of two groups were analyzed by non-parametrie test.Results: There were 63 patients in the benign group and 58 in the malignant group. There was no statistically significant difference of the incidence of bone marrow edema in the benign and malignant group (65.08%, 58.62%, χ2=0.535, P>0.05); the incidence of soft tissue edema in the malignant group is greater than that in the benign group (81.03%, 63.49%, χ2=4.6, P<0.05). For the ratio of the largest diameter of bone marrow edema to that of the tumor, the benign group is larger than the malignant group (the median of the ratio is 0.69, 0.425, P<0.05). For the ratio of thelargest diameter of soft tissue edema to the that of the tumor, there was no significant difference between benign and malignant group (the median of the ratio is 0.415, 0.3, P>0.05).Conclusions: Bone marrow and soft tissue edema can be found surrounding around both the benign and malignant bone tumors, the differences are: soft tissue edema is more common in the malignant tumors, bone marrow edema is more pronounced in the benign group (The ratio of the largest diameter of bone marrow edema to the that of the tumor in the benign group is greater than that in the malignant group).
[Keywords] bone neoplasms；magnetic resonance imaging；bone marrow edema；soft tissue edema

GAO Sai Qingdao University, Qingdao 266003, China

YANG Zhitao Department of Radiology, the Affiliated Hospital of Qingdao University, Qingdao 266003, China

LI Xiang Department of Ultrasound, the Affiliated Hospital of Qingdao University, Qingdao 266003, China

CHEN Haisong* Department of Radiology, the Affiliated Hospital of Qingdao University, Qingdao 266003, China

XU Wenjian Department of Radiology, the Affiliated Hospital of Qingdao University, Qingdao 266003, China

*Correspondence to: Chen HS, E-mail: chs368@sina.com

Conflicts of interest   None.

ACKNOWLEDGMENTS  This work was part of National Natural Science Foundation of China No. 81571673, 81671658
Received  2019-01-30
Accepted  2019-04-30
DOI: 10.12015/issn.1674-8034.2019.06.007
Cite this article as: Gao S, Yang ZT, Li X, et al. The difference of surrounding edema between benign tmor-tumor-like lesions and malignant tumors: evaluated by MRI. Chin J Magn Reson Imaging, 2019, 10(6): 430-434. DOI:10.12015/issn.1674-8034.2019.06.007.

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