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• Clinical Article •
The MRI diagnosis and clinical study of intraspinal epidermoid cyst
WANG Pei-yuan  WANG Xia  CHEN Liang  WANG Xu  XIA Ji-kai  Wang Bin 

DOI:10.3969/j.issn.1674-8034.2015.09.005.


[Abstract] Objective: To discuss the clinical characteristics and MRI diagnostic value of intraspinal epidermoid cyst.Materials and Methods: Twenty-seven cases (male 15 cases, female 12 cases) intraspinal epidermoid cyst with complete clinical and imaging data were diagnosed retrospectively, which confirmed by surgery and pathology.Results: The major clinical manifestations were unilateral or bilateral lower lamb pain, numbness weakness or strength decreased. Location of lesions were 13 in sacrococcygeal region, 4 in lumbosacral vertebral border area, 7 in lumbar segments, and 3 in thoracolumbar border area. Twenty-three lesions were in subdural space, and 4 in the spinal cord. The length of lesions was 2.7—9.0 cm, and the long axis was consistent with the spinal canal. On MRI, 8 cases showed uniformity hypo-intensity, 14 cases showed iso-/hypo- intensity, and 5 cases showed hyper-/hypo- intensity in T1WI. And 6 cases showed uniformity hyper-intensity, 21 cases showed iso-/hyperintensity in T2WI. In contrast enhancement, only 4 cases showed irregular circular or linear peripheral enhancement. Sixteen cases complicated with other congenital bone deformation.Conclusions: The intraspinal epidermoid cyst most likely occurred congenitally, and often complicated with other congenital developmental malformation, which can be observed by X-ray photography. The intraspinal epidermoid cyst has characteristic MRI findings, which play an important role in its diagnosis and differential diagnosis.
[Keywords] Dermoid cyst；Spinal cord diseases；Magnetic resonance imaging

WANG Pei-yuan Medical radiology department of Binzhou medical university affiliated hospital, Shandong Binzhou, 264403, China; Radiology research institution of Binzhou medical university, Shandong Yantai, 264100, China

WANG Xia Basic medical college of Binzhou medical university, Shandong Yantai, 264100, China

CHEN Liang Medical radiology department of Binzhou medical university affiliated hospital, Shandong Binzhou, 264403, China

WANG Xu Medical radiology department of Binzhou medical university affiliated hospital, Shandong Binzhou, 264403, China

XIA Ji-kai Medical radiology department of Binzhou medical university affiliated hospital, Shandong Binzhou, 264403, China

Wang Bin* Radiology research institution of Binzhou medical university, Shandong Yantai, 264100, China

*Correspondence to: Wang B, E-mail: binwang001@aliyun.com

Conflicts of interest   None.

Received  2015-06-30
Accepted  2015-08-08
DOI: 10.3969/j.issn.1674-8034.2015.09.005
DOI:10.3969/j.issn.1674-8034.2015.09.005.

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