Spinal Extradural Arachnoid Cyst

Stechison, Michael T.; Hendrick, Bruce; Cohen, Elliot L.

doi:10.1159/000120438

Cited by 19 publications

(20 citation statements)

References 8 publications

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“…Overall, motor weakness is usually more predominant than sensory loss. 11,21,25 Symptoms can be intermittent and exacerbated by Valsalva maneuvers or gravitational positional forces. 24 Remissions and fluctuation in symptoms have been reported in approximately 30% of cases.…”

Section: Clinical Featuresmentioning

confidence: 99%

Spinal extradural arachnoid cysts: clinical, radiological, and surgical features

Liu

Cole

Kan

et al. 2007

FOC

106

154

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✓Extradural arachnoid cysts in the spine are rare and are seldom a cause of spinal cord compression. They are thought to arise from congenital defects in the dura mater, and they almost always communicate with the intrathecal subarachnoid space through a small defect in the dura. The mainstay of treatment in patients with neurological symptoms is surgical removal of the cyst together with ligation of the communicating pedicle and closure of the dural defect. In the present paper the authors review the literature and discuss the clinical and pathological features, mechanisms of pathogenesis, neuroimaging characteristics, and surgical management of spinal extradural arachnoid cysts. The surgical technique for removal of these lesions is illustrated in a patient with a large thoracolumbar spinal extradural arachnoid cyst causing neurogenic claudication.

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Section: Clinical Featuresmentioning

confidence: 99%

Spinal extradural arachnoid cysts: clinical, radiological, and surgical features

Liu

Cole

Kan

et al. 2007

FOC

106

154

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“…9 However, they may be laterally situated in the dentate ligament. 6,10 Intradural arachnoid cysts are more frequently located in the thoracic spine (70%) or thoracolumbar (12%), but they can also be lumbosacral (13%) and cervical (3%), 6,11 and seldom produce bony changes in the spinal canal. 3 Spinal arachnoid cysts may occur at any age, but are most common in the second decade, and are more common in males by almost twofold.…”

Section: Discussionmentioning

confidence: 99%

“…3 Spinal arachnoid cysts may occur at any age, but are most common in the second decade, and are more common in males by almost twofold. 11 Most intraspinal arachnoid cysts communicate with the subarachnoid space, and at histology consist of a normal arachnoid structure, occasionally with thickened ®brous tissue. 2,10 Etiologies for arachnoid cysts are congenital and acquired.…”

Section: Discussionmentioning

confidence: 99%

“…Urinary complaints as initial symptoms are rare. 3,5,6,11 The clinical course is usually protracted, mimicking multiple sclerosis in some patients. 2 In acquired arachnoid cystic meningitis, trauma and hemorrhage are considered to be causative or contributing factors, it being postulated that the proliferation of arachnoid trabeculae occurs from the septum posticum for the posteriorly-situated arachnoid cyst.…”

Section: Discussionmentioning

confidence: 99%

“…2 The treatment of choice of spinal arachnoid cysts is surgical removal of as much of its wall as is safe or shunting procedures. 5,6,11 The general postoperative outcome for these procedures is good recovery in 87% of patients, and severe disability in 11%. 9 In the present case the authors had the opportunity to observe the evolution from hemorrhage as causative of arachnoid adhesions to arachnoid cyst with hypertensive characteristics dislodging spinal cord anteriorly.…”

Section: Discussionmentioning

confidence: 99%

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Evolving magnetic resonance spinal cord trauma in child: from hemorrhage to intradural arachnoid cyst

1998

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Acquired arachnoid cysts of the spinal cord are uncommon causes of spinal cord compression in the pediatric group. Meningitis, trauma and hemorrhage are considered to be causative or contributing factors. Interestingly, no spinal arachnoid cysts have been reported in patients after subarachnoid hemorrhage or meningitis, conditions expected to cause arachnoid scarring. We describe a child of 1 year and 10 months with thoracic spine trauma with crural paraplegia and anesthesia at level T5 submitted to serial magnetic resonance imagery at 5 days and 18 months, after trauma showing evolution from subarachnoid hemorrhage and adhesions of the arachnoid space to a posterior hyptertensive thoracic intradural arachnoid cyst.

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