Retained medullary cord extending to a sacral subcutaneous meningocele

Child's Nervous System : ChNS : Official Journal of the International Society for Pediatric Neurosurgery
Nobuya MurakamiKoji Iihara

Abstract

A retained medullary cord (RMC) is a rare closed spinal dysraphism with a robust elongated neural structure continuous from the conus and extending to the dural cul-de-sac. One case extending down to the base of a subcutaneous meningocele at the sacral level has been reported. We report on three cases of closed spinal dysraphism, in which a spinal cord-like tethering structure extended out from the dural cul-de-sac and terminated at a skin-covered meningocele sac in the sacrococcygeal region, which was well delineated in curvilinear coronal reconstructed images of 3D-heavily T2-weighted images (3D-hT2WI). Intraoperative neurophysiology revealed the spinal cord-like tethering structure was nonfunctional, and histopathology showed that it consisted of central nervous system tissue, consistent with RMC. The tethering structure histologically contained a glioneuronal core with an ependymal-like lumen and smooth muscle, which may indicate developmental failure during secondary neurulation. When the RMC extending to a meningocele is demonstrated with the detailed magnet resonance imaging including 3D-hT2WI, decision to cut the cord-like structure for untethering of the nervous tissue should be made under careful intraoperative neurop...Continue Reading

References

Apr 1, 1980·Journal of Neurosurgery·J W Walsh, W R Markesbery
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Aug 18, 2001·Child's Nervous System : ChNS : Official Journal of the International Society for Pediatric Neurosurgery·Y ErşahinS Mutluer
Dec 26, 2006·Child's Nervous System : ChNS : Official Journal of the International Society for Pediatric Neurosurgery·Takato MoriokaTomio Sasaki
Feb 22, 2011·Neurosurgery·Dachling PangGreg S Moes
May 16, 2013·Child's Nervous System : ChNS : Official Journal of the International Society for Pediatric Neurosurgery·Nobuya MurakamiTomio Sasaki
Feb 25, 2014·Child's Nervous System : ChNS : Official Journal of the International Society for Pediatric Neurosurgery·Francesco SalaClaudio Ghimenton
Aug 25, 2015·Child's Nervous System : ChNS : Official Journal of the International Society for Pediatric Neurosurgery·Song Yun-HaiChen Cheng
Jan 28, 2017·Journal of Neurosurgery. Pediatrics·Nobuhito MorotaHideki Ogiwara
Apr 8, 2017·Neuropathology : Official Journal of the Japanese Society of Neuropathology·Takato MoriokaKoji Iihara

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Citations

Apr 29, 2018·Child's Nervous System : ChNS : Official Journal of the International Society for Pediatric Neurosurgery·Noritoshi ShirozuTakakazu Sasaguri
Jul 13, 2019·Child's Nervous System : ChNS : Official Journal of the International Society for Pediatric Neurosurgery·Takato MoriokaSatoshi O Suzuki
Apr 28, 2020·Journal of Korean Neurosurgical Society·Kyung Hyun KimKyu-Chang Wang
Jun 24, 2018·Child's Nervous System : ChNS : Official Journal of the International Society for Pediatric Neurosurgery·Takato MoriokaKoji Iihara
Oct 29, 2020·Child's Nervous System : ChNS : Official Journal of the International Society for Pediatric Neurosurgery·Kyung Hyun KimKyu-Chang Wang
Apr 22, 2021·Surgical Neurology International·Ai KurogiMasahiro Mizoguchi
May 21, 2021·NMC Case Report Journal·Takato MoriokaMasahiro Mizoguchi

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