Diagnosis and Treatment of Intradural Arachnoid Cysts of the Thoracic Spine

Perret, George; Green, David; Keller, John

doi:10.1148/79.3.425

Cited by 147 publications

(53 citation statements)

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“…4) Like syringomyelia, a number of different hypotheses have been proposed to explain the origin of spinal arachnoid cysts. 2,10) The true pathogenesis is likely to be multifactorial. Association of spinal arachnoid cysts and syringomyelia is rare and usually located in the thoracic region.…”

Section: Discussionmentioning

confidence: 99%

Disproportionately Large Communicating Fourth Ventricle Associated With Syringomyelia and Intradural Arachnoid Cyst in the Spinal Cord Successfully Treated With Additional Shunting

Yamashita

Hiramatsu

Kitahama

et al. 2012

Neurol. Med. Chir.(Tokyo)

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A 44-year-old woman presented with a rare case of disproportionately large communicating fourth ventricle (DLCFV) associated with syringomyelia and intradural arachnoid cyst in the spinal cord. Ventriculoperitoneal shunt operation was performed for hydrocephalus after subarachnoid hemorrhage. She developed DLCFV, which was then associated with syringomyelia and spinal intradural arachnoid cyst. Shunting of the fourth ventricle improved DLCFV, and then the syringomyelia and arachnoid cyst. Although the aqueduct was patent, independent pressure control of the fourth ventricle and the other ventricles was necessary to improve the symptoms. Shunting of the fourth ventricle should be considered for patients with DLCFV when the symptoms persist despite adequate pressure control of the other ventricles.

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Section: Discussionmentioning

confidence: 99%

Disproportionately Large Communicating Fourth Ventricle Associated With Syringomyelia and Intradural Arachnoid Cyst in the Spinal Cord Successfully Treated With Additional Shunting

Yamashita

Hiramatsu

Kitahama

et al. 2012

Neurol. Med. Chir.(Tokyo)

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“…8) The pathogenesis of intradural arachnoid cysts remains obscure, although a congenital origin has been postulated. Widening of the congenital septum posticum 1,11) or a diverticulum caused by abnormal distribution of Thoracic Arachnoid Cyst and Epidural Hematoma arachnoid trabeculae 8,10,15) may be the cause of congenital arachnoid cysts. Other etiologies including trauma or inflammation have been also reported.…”

Section: Discussionmentioning

confidence: 99%

“…2,4) The pathogenesis of this entity is not clear, however congenital, traumatic, or inflammatory etiologies have been reported. 1,3,8,10,11,14,15) Spinal intradural arachnoid cyst and spinal epidural hematoma are well-known entities, but no association has been reported. Here we describe a case of intradural arachnoid cyst of the thoracic spine which developed at the same location after surgery in the dorsal subarachnoid space for ventral epidural hematoma.…”

Section: Introductionmentioning

confidence: 99%

Thoracic Intradural Arachnoid Cyst Associated With Surgical Removal of Epidural Hematoma-Case Report-

Endo

Takahashi

Shimizu

et al. 2004

Neurol. Med. Chir.(Tokyo)

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A 54-year-old woman presented with a very rare association of spinal intradural arachnoid cyst and spinal epidural hematoma manifesting as paraparesis subsequent to severe back pain. Magnetic resonance (MR) imaging disclosed a ventral epidural hematoma extending from the T-4 to T-6 levels and compressing the spinal cord ventrally. Emergent surgical evacuation of the epidural hematoma was carried out 22 hours after the onset. MR imaging obtained 2 days after surgery showed enlargement of the dorsal subarachnoid space at the T-3 to T-8 levels. The patient could walk independently within 6 months after discharge, but paraparesis recurred 3 years after surgery. MR imaging showed formation of an intradural arachnoid cyst, which compressed the spinal cord dorsally. She underwent arachnoid cystectomy, and recovered ambulation postoperatively. This case of intradural arachnoid cyst of the thoracic spine which appeared after surgical removal of an epidural hematoma at the same spinal level indicates some association between the epidural hematoma and the arachnoid cyst.

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“…Arachnoid cysts can be idiopathic too, and various theories have been proposed to explain their formation. Perret et al [7] postulated an origin from the septum posticum of Schwalbe, which divides the dorsal subarachnoid space in the midline from the cervical to lumbar region; this theory may account for cysts, but it does not explain those in a ventral location. Teng and Rudner [8] proposed that normal variations of intraspinal CSF pressure lead to cyst formation through dilatation of low-resistance areas within the arachnoid; subsequent cyst enlargement is probably to be related to a one-way valve mechanism at the neck of the diverticulum.…”

Section: Patogenesismentioning

confidence: 99%

Idiopathic Intradural Extramedullary Arachnoid Cyst and Associated Syringomyelia

Moschettoni

Lisciani

Cacciotti

et al. 2009

Scholarly Research Exchange

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We report a case and discuss clinical features and radiological differential diagnosis of dorsal idiopathic extramedullary arachnoid cyst associated to a caudal syringomyelic cavitation. The aim of this article is to review the current literature on a rare topic as idiopathic intradural extramedullary arachnoid cyst with associated syringomyelia. We emphasize the fact that correct diagnosis and adequate treatment, which we believe is microsurgical fenestration of the cyst into the subarachnoid space, may lead to disappearance of syringomyelia and complete resolution of preoperative spinal cord compression symptoms.

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Diagnosis and Treatment of Intradural Arachnoid Cysts of the Thoracic Spine

Cited by 147 publications

References 0 publications

Disproportionately Large Communicating Fourth Ventricle Associated With Syringomyelia and Intradural Arachnoid Cyst in the Spinal Cord Successfully Treated With Additional Shunting

Disproportionately Large Communicating Fourth Ventricle Associated With Syringomyelia and Intradural Arachnoid Cyst in the Spinal Cord Successfully Treated With Additional Shunting

Thoracic Intradural Arachnoid Cyst Associated With Surgical Removal of Epidural Hematoma-Case Report-

Idiopathic Intradural Extramedullary Arachnoid Cyst and Associated Syringomyelia

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