抄録
Background: An ependyma-lined canal with surrounding neuroglial tissues can be present in lumbosacral lipomatous malformations; however, the precise embryological significance is still unclear. Method: Six out of 50 patients with lipomatous malformations had ependymal structures. We retrospectively analyzed the clinical, neuroradiological, and histological findings of these patients to demonstrate the relationship with the embryological background of the retained medullary cord (RMC), which normally regresses, but was retained here because of late arrest of secondary neurulation. Results: Five (13.9%) of 36 patients with filar and caudal types and 1 of 3 lipomyelomeningoceles had ependymal structures, while none with dorsal and transitional types had these tissues. Histologically, the ependymal structures surrounded by neuroglial tissue and containing various amounts of adipose tissue bear a striking resemblance to the ependymal structures in RMC. Conclusion: The 13.9% incidence of association between the ependymal structures and filar and caudal types is thought to be because of second ary neurulation failure with the same embryological background as that of RMC. Dorsal and transitional types, resulting from primary neurulation failure, therefore, did not have ependymal structures.
| 元の言語 | 英語 |
|---|---|
| ページ（範囲） | 387-394 |
| ページ数 | 8 |
| ジャーナル | Pediatric Neurosurgery |
| 巻 | 53 |
| 発行部数 | 6 |
| DOI | |
| 出版物ステータス | 出版済み - 12 1 2018 |
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All Science Journal Classification (ASJC) codes
- Pediatrics, Perinatology, and Child Health
- Surgery
- Clinical Neurology
これを引用
Ependyma-lined canal with surrounding neuroglial tissues in lumbosacral lipomatous malformations : Relationship with retained medullary cord. / Murakami, Nobuya; Morioka, Takato; Shimogawa, Takafumi; Mukae, Nobutaka; Inoha, Satoshi; Sasaguri, Takakazu; Suzuki, Satoshi; Iihara, Koji.
：: Pediatric Neurosurgery, 巻 53, 番号 6, 01.12.2018, p. 387-394.研究成果: ジャーナルへの寄稿 › 記事
}
TY - JOUR
T1 - Ependyma-lined canal with surrounding neuroglial tissues in lumbosacral lipomatous malformations
T2 - Relationship with retained medullary cord
AU - Murakami, Nobuya
AU - Morioka, Takato
AU - Shimogawa, Takafumi
AU - Mukae, Nobutaka
AU - Inoha, Satoshi
AU - Sasaguri, Takakazu
AU - Suzuki, Satoshi
AU - Iihara, Koji
PY - 2018/12/1
Y1 - 2018/12/1
N2 - Background: An ependyma-lined canal with surrounding neuroglial tissues can be present in lumbosacral lipomatous malformations; however, the precise embryological significance is still unclear. Method: Six out of 50 patients with lipomatous malformations had ependymal structures. We retrospectively analyzed the clinical, neuroradiological, and histological findings of these patients to demonstrate the relationship with the embryological background of the retained medullary cord (RMC), which normally regresses, but was retained here because of late arrest of secondary neurulation. Results: Five (13.9%) of 36 patients with filar and caudal types and 1 of 3 lipomyelomeningoceles had ependymal structures, while none with dorsal and transitional types had these tissues. Histologically, the ependymal structures surrounded by neuroglial tissue and containing various amounts of adipose tissue bear a striking resemblance to the ependymal structures in RMC. Conclusion: The 13.9% incidence of association between the ependymal structures and filar and caudal types is thought to be because of second ary neurulation failure with the same embryological background as that of RMC. Dorsal and transitional types, resulting from primary neurulation failure, therefore, did not have ependymal structures.
AB - Background: An ependyma-lined canal with surrounding neuroglial tissues can be present in lumbosacral lipomatous malformations; however, the precise embryological significance is still unclear. Method: Six out of 50 patients with lipomatous malformations had ependymal structures. We retrospectively analyzed the clinical, neuroradiological, and histological findings of these patients to demonstrate the relationship with the embryological background of the retained medullary cord (RMC), which normally regresses, but was retained here because of late arrest of secondary neurulation. Results: Five (13.9%) of 36 patients with filar and caudal types and 1 of 3 lipomyelomeningoceles had ependymal structures, while none with dorsal and transitional types had these tissues. Histologically, the ependymal structures surrounded by neuroglial tissue and containing various amounts of adipose tissue bear a striking resemblance to the ependymal structures in RMC. Conclusion: The 13.9% incidence of association between the ependymal structures and filar and caudal types is thought to be because of second ary neurulation failure with the same embryological background as that of RMC. Dorsal and transitional types, resulting from primary neurulation failure, therefore, did not have ependymal structures.
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UR - http://www.scopus.com/inward/citedby.url?scp=85056484641&partnerID=8YFLogxK
U2 - 10.1159/000494029
DO - 10.1159/000494029
M3 - Article
VL - 53
SP - 387
EP - 394
JO - Pediatric Neurosurgery
JF - Pediatric Neurosurgery
SN - 1016-2291
IS - 6
ER -