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Clinicoradiologic Characteristics of Intradural Extramedullary Conventional Spinal Ependymoma

Other Titles
 경막내 척수외 뇌실막세포종의 임상 영상의학적 특징 
Authors
 Seung Hyun Lee  ;  Yoon Jin Cha  ;  Yong Eun Cho  ;  Mina Park  ;  Bio Joo  ;  Sang Hyun Suh  ;  Sung Jun Ahn 
Citation
 Journal of the Korean Society of Radiology (대한영상의학회지), Vol.84(5) : 1066-1079, 2023-09 
Journal Title
Journal of the Korean Society of Radiology(대한영상의학회지)
ISSN
 1738-2637 
Issue Date
2023-09
Keywords
Ependymoma ; Magnetic Resonance Imaging ; Myxopapillary Ependymoma ; Spinal Cord Neoplasms
Abstract
Purpose: Distinguishing intradural extramedullary (IDEM) spinal ependymoma from myxopapillary ependymoma is challenging due to the location of IDEM spinal ependymoma. This study aimed to investigate the utility of clinical and MR imaging features for differentiating between IDEM spinal and myxopapillary ependymomas.

Materials and methods: We compared tumor size, longitudinal/axial location, enhancement degree/pattern, tumor margin, signal intensity (SI) of the tumor on T2-weighted images and T1-weighted image (T1WI), increased cerebrospinal fluid (CSF) SI caudal to the tumor on T1WI, and CSF dissemination of pathologically confirmed 12 IDEM spinal and 10 myxopapillary ependymomas. Furthermore, classification and regression tree (CART) was performed to identify the clinical and MR features for differentiating between IDEM spinal and myxopapillary ependymomas.

Results: Patients with IDEM spinal ependymomas were older than those with myxopapillary ependymomas (48 years vs. 29.5 years, p < 0.05). A high SI of the tumor on T1W1 was more frequently observed in IDEM spinal ependymomas than in myxopapillary ependymomas (p = 0.02). Conversely, myxopapillary ependymomas show CSF dissemination. Increased CSF SI caudal to the tumor on T1WI was observed more frequently in myxopapillary ependymomas than in IDEM spinal ependymomas (p < 0.05). Dissemination to the CSF space and increased CSF SI caudal to the tumor on T1WI were the most important variables in CART analysis.

Conclusion: Clinical and radiological variables may help differentiate between IDEM spinal and myxopapillary ependymomas.
Files in This Item:
T202306903.pdf Download
DOI
10.3348/jksr.2022.0122
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Neurosurgery (신경외과학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Pathology (병리학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Radiology (영상의학교실) > 1. Journal Papers
Yonsei Authors
Park, Mina(박미나) ORCID logo https://orcid.org/0000-0002-2005-7560
Suh, Sang Hyun(서상현) ORCID logo https://orcid.org/0000-0002-7098-4901
Ahn, Sung Jun(안성준) ORCID logo https://orcid.org/0000-0003-0075-2432
Cho, Yong Eun(조용은) ORCID logo https://orcid.org/0000-0001-9815-2720
Joo, Bio(주비오) ORCID logo https://orcid.org/0000-0001-7460-1421
Cha, Yoon Jin(차윤진) ORCID logo https://orcid.org/0000-0002-5967-4064
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/197505
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