Intradural spinal arachnoid cysts in adults

Wang, Michael Y.; Levi, Allan D.; Green, Barth A.

doi:10.1016/s0090-3019(03)00149-6

Cited by 148 publications

(141 citation statements)

References 17 publications

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“…However, both in humans and dogs, a complete block of contrast medium flow at the lesion site similar to what was seen in the present case has also been described, thus suggesting the presence of a SAP totally isolated from the subarachnoid space and mimicking an intradural lesion (Bassiouni et al 2004, Jurina andGrevel 2004). This may cause minimal compliance of the fluid-filled cystic structure and persistent spinal cord compression that might explain the dilatation and severity of the lesions (Gnirs et al 2003, Wang et al 2003, Bassiouni et al 2004). …”

Section: Discussionsupporting

confidence: 81%

Severe focal myelopathy secondary to chronic compression by an arachnoid pseudocyst in a Rottweiler

Polizopoulou

Souftas

Brellou

et al. 2017

J Hellenic Vet Med Soc

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A four-year old Rottweiler was presented with tetraplegia, established progressively over a 4-month period. Initiallythe dog developed paresis of the posterior limbs that subsequently evolved to tetraparesis and finally tetraplegia. Upon neurological examination the dog exhibited spastic tetraplegia with exaggerated spinal reflexes in all four limbs. The neuroanatomical lesion localization indicated a focal or diffuse cervical spinal cord disease. Cisternal myelography revealed obstruction of the contrast medium flow at the level of C5 vertebral body. Magnetic resonance imaging disclosed intradural-extramedullary compression of the spinal cord at the level of C5-C6 intervertebral disc by a spinal arachnoid pseudocyst, syrinx formation and myelopathy expressed as abnormally higher signal on T2-weighted images at the C5 segment level. Severe demyelination, involving exclusively the white matter of the grossly affected segments and extending rostrally into the brainstem and caudally into the thoracic spinal cord segments, was noticed on histopathology. The unusually severe secondary degenerative change in the cervical spinal cord white matter, inflicted by focal SAP compression, was the most interesting finding.

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Section: Discussionsupporting

confidence: 81%

Severe focal myelopathy secondary to chronic compression by an arachnoid pseudocyst in a Rottweiler

Polizopoulou

Souftas

Brellou

et al. 2017

J Hellenic Vet Med Soc

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“…In some rare cases [4,14,15] as the one we report, a syryngomielic cavitation can be associated to an idiopathic arachnoid cyst.…”

Section: Associated Syringomyeliamentioning

confidence: 56%

“…Most are dorsal to the spinal cord, and a minor percentage, as in our case, is ventrally located [1][2][3][4]. Intradural extramedullary arachnoid cysts are less common than extradural ones [2,4] and are twice as frequent in males as in females [5].…”

Section: Discussionmentioning

confidence: 77%

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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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“…The nomenclature for this entity is also confusing as intradural arachnoid cysts are variously referred to as subdural arachnoid cysts, subarachnoid cysts, leptomeningeal cysts, arachnoid diverticula, and meningeal hydrops 15,16 .…”

Section: Dysraphism Is Divided Into 2 Clinical Subsets: Open and Closedmentioning

confidence: 99%

Pathophysiology, Diagnosis, and Treatment of Spinal Meningoceles and Arachnoid Cysts

Dahlgren

Baron

Vaccaro

2006

Seminars in Spine Surgery

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Intradural spinal arachnoid cysts in adults

Cited by 148 publications

References 17 publications

Severe focal myelopathy secondary to chronic compression by an arachnoid pseudocyst in a Rottweiler

Severe focal myelopathy secondary to chronic compression by an arachnoid pseudocyst in a Rottweiler

Idiopathic Intradural Extramedullary Arachnoid Cyst and Associated Syringomyelia

Pathophysiology, Diagnosis, and Treatment of Spinal Meningoceles and Arachnoid Cysts

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