Localized Venous Plexi in the Spine Simulating Prolapse of an Intervertebral Disc

Hammer, Alan; Knight, Ian; Agarwal, Anand

doi:10.1097/00007632-200301010-00025

Cited by 42 publications

(41 citation statements)

References 8 publications

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“…12 Enlarged epidural veins have been implicated as the cause of the presenting symptoms, because any pathologic process in the lumbar spine compressing a nerve root can cause localized pain in the back accompanied by a sciatica. 12 When an anterior epidural venous engorgement is present in the lumbosacral spine, associated symptoms include sciatica and urinary retention, 3 because venous plexi around the spinal cord and exiting nerve roots is a very potent cause for pain.…”

Section: Discussionmentioning

confidence: 99%

Epidural Venous Plexus Enlargements Presenting With Radiculopathy and Back Pain in Patients With Inferior Vena Cava Obstruction or Occlusion

Paksoy¹,

Görmüş²

2004

Spine

124

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Section: Discussionmentioning

confidence: 99%

Epidural Venous Plexus Enlargements Presenting With Radiculopathy and Back Pain in Patients With Inferior Vena Cava Obstruction or Occlusion

Paksoy¹,

Görmüş²

2004

Spine

124

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“…Other abnormalities of the IVVP in human and veterinary patients include spontaneous congenital dilation of the cervical IVVP (Groen et al 2000, Hammer et al 2003 arteriovenous malformations (Hayashida et al 1999) and fibrocartilaginous embolism (Cauzinille 2000).…”

Section: Introductionmentioning

confidence: 99%

Effects of artificially induced spinal cord compression on the canine cervical internal vertebral venous plexus: comparative evaluation of computed tomographic venography and digital subtraction venography

Gómez

Lanz²,

Jones³

et al. 2008

Arch. med. vet.

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Effects of artificially induced spinal cord compression on the canine cervical internal vertebral venous plexus: comparative evaluation of computed tomographic venography and digital subtraction venographyEfectos de la compresión de la médula espinal inducida artificialmente sobre el plexo venoso vertebral interno cervical en el perro: evaluación comparativa mediante venografía por tomografía computarizada y venografía por substracción digital RESUMENEl plexo venoso vertebral interno (PVVI) es una red vascular localizada a lo largo del canal vertebral. El presente estudio fue diseñado para evaluar variaciones en la morfología del PVVI cervical bajo condiciones de compresión aguda de la médula espinal en perros. Una compresión medular experimental fue inducida en once perros adultos al nivel de C3/4 utilizando una técnica modificada de catéter de angioplastia con balón. Los perros fueron evaluados antes, durante y posterior a la compresión medular utilizando para ello venografía intraósea por substracción digital (VSD) y venografía por tomografía computarizada (TC). La VSD mostró pérdida manifiesta e inmediata de opacificación del PVVI cervical en el sitio de la compresión. La venografía por TC también evidenció pérdida de llenado del PVVI cervical con medio de contraste en las áreas comprimidas por el balón de angioplastia. La VSD también mostró cambios hemodinámicos del PVVI y sus ramas colaterales durante la compresión. Durante la postcompresión las imágenes de la VSD y la venografía por TC revelaron que algunos perros presentaban pérdida de llenado con medio de contraste del PVVI cervical en el área previamente comprimida. Los resultados de este estudio muestran que la compresión medular experimental en perros induce alteraciones locales inmediatas en la morfología venosa dentro del canal vertebral afectado.

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“…9) However, computed tomography (CT) and magnetic resonance (MR) imaging have reduced the incidence of confirmed epidural varices to 0.067-1.2%, 15,17,19) although a rate of approximately 5% has been reported. 10) Only 1 of 823 patients (0.12%) subjected to lumbar surgery at our institute between 1994 and 2006 was confirmed to have lumbar epidural varix. This decrease in incidence may depend on two reasons: increased surgery for small lesions which are difficult to identify based only on radiography and myelography, and varices associated with vascular malformation can be identified by MR imaging and excluded.…”

Section: Introductionmentioning

confidence: 91%

Radiculopathy Caused by Lumbar Epidural Venous Varix -Case Report-

Aoyama

Hida

Akino

et al. 2008

Neurol. Med. Chir.(Tokyo)

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A 33-year-old man presented with a rare case of lumbar epidural venous varix causing radiculopathy manifesting as sciatica exacerbated during bowel movements. The left straight-leg raising test was positive and patellar tendon reflex was lost. Lumbar magnetic resonance imaging showed a mass lesion in the epidural space at the L4 level just anterior to the dural sac on the left, appearing as hypointense on T 1 -and hyperintense on T 2 -weighted images, with ring-like enhancement with gadopentetate dimeglumine. He underwent surgery under a preoperative diagnosis of cystic nerve sheath tumor. After left hemilaminectomy, intraoperative ultrasonography showed a low echoic mass lesion ventral to the L4 nerve root. The mass was dark blue with a smooth wall. Tearing of the wall resulted in continuous bleeding. After removal of the lesion, we confirmed that the dura of the nerve root was intact. Histological examination of the surgical specimen confirmed venous tissue. The postoperative course was excellent. Lumbar epidural varix is difficult to diagnose preoperatively. Lumbar epidural varix should be considered if the lesion is smaller on preoperative than intraoperative imaging, or disappears with bleeding cessation, as this may avoid unnecessary widening of the operative field. The correct preoperative diagnosis remains difficult, so we recommend surgical removal and histological confirmation.

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Localized Venous Plexi in the Spine Simulating Prolapse of an Intervertebral Disc

Cited by 42 publications

References 8 publications

Epidural Venous Plexus Enlargements Presenting With Radiculopathy and Back Pain in Patients With Inferior Vena Cava Obstruction or Occlusion

Epidural Venous Plexus Enlargements Presenting With Radiculopathy and Back Pain in Patients With Inferior Vena Cava Obstruction or Occlusion

Effects of artificially induced spinal cord compression on the canine cervical internal vertebral venous plexus: comparative evaluation of computed tomographic venography and digital subtraction venography

Radiculopathy Caused by Lumbar Epidural Venous Varix -Case Report-

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