Surgical Neuroangiography

Lasjaunias, P.; Berenstein, Alejandro

doi:10.1007/978-3-642-71188-6

Cited by 47 publications

(46 citation statements)

References 195 publications

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“…As classified by Lasjaunias and colleagues, 4,5 complex DVAs can occur unilaterally or bilaterally, supratentorially or infratentorially, superficially and/or in deep tissue (Table 1). 3,4 Involvement may be focal or, as in this case, involve the entire hemisphere. In patients with extensive complex transcerebral medullary venous anomalies, the enlarged caliber of these small veins gives rise to the fan-shaped or radially oriented appearance in which the veins converge to drain into either the cortical or deep venous system.…”

Section: Discussionmentioning

confidence: 95%

“…1 Developmental venous anomalies have also been reported in patients with facial lymphatic malformations, although the developmental association is unclear. 4 The incidence of hemorrhage in patients with DVAs has been controversial in the past. In general, DVAs either simple, such as the venous angioma, or complex are rarely, if ever, associated with hemorrhage, unlike entities such as cavernous venous malformations or AVMs.…”

Section: Discussionmentioning

confidence: 99%

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Complex right hemisphere developmental venous anomaly associated with multiple facial hemangiomas

Aagaard¹,

Song²,

Eskridge³

et al. 1999

Journal of Neurosurgery

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Complex developmental venous anomalies (DVAs) represent variations of normal cerebral venous drainage and consist of dilation of the superficial and/or deep venous system. These rare anomalies can occur unilaterally or bilaterally, supratentorially or infratentorially, focally or they can affect the entire hemisphere. Some DVAs are associated with cervicofacial venous malformations or facial lymphatic malformations. Anomalies of this type are generally clinically silent, and cerebral dysfunction is usually absent. Symptoms, when they occur, are most commonly headache or mild seizure disorders. The angiographic findings are striking, with well-formed but enlarged transcerebral medullary and deep and/or superficial cortical veins. Opacification of these venous structures occurs within the same time frame as a normal angiographic venous phase. The authors report the case of a 33-year-old man in whom a large inoperable arteriovenous malformation had been previously diagnosed and who presented with seizures. Repeated magnetic resonance imaging and angiography demonstrated abnormally dilated transcerebral, superficial, and deep venous structures involving the entire right hemisphere with no identifiable nidus. Additionally, multiple bilateral benign facial hemangiomas were present in this patient. It is important to recognize this rare venous appearance as a developmental variant and not mistake it for an arteriovenous malformation or a partially thrombosed vein of Galen malformation. Because these venous anomalies are extreme variants of the normal venous system, hemorrhage rarely, if ever, occurs and the patient can be reassured that no interventional or surgical therapy is necessary or warranted.

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Section: Discussionmentioning

confidence: 95%

Section: Discussionmentioning

confidence: 99%

Complex right hemisphere developmental venous anomaly associated with multiple facial hemangiomas

Aagaard¹,

Song²,

Eskridge³

et al. 1999

Journal of Neurosurgery

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“…In the region of the MMA most of these anastomoses are at the skull base, and potential inadvertent embolization of collateral branches is expected in the territories of the internal carotid artery siphon (C-4 and C-5) or the petrous rami, carrying the risk of facial palsy. 6 Such a complication can be prevented with the following: distal catheterization (as close as possible to the shunt), preembolization high-pressure injection of contrast medium to help visualize such anastomoses, and careful monitoring of the behavior of the In anatomical studies of injection into the dura mater, 7 investigators have demonstrated a very rich anastomotic network among branches of the MMA, the PMA, dural branches of the pharyngeal arteries, branches of the occipital arteries at the level of the falx cerebelli, and the meninges of the occipital bone. The PMA usually originates unilaterally at the posterior aspect of the extracranial VA at C-1.…”

Section: Discussionmentioning

confidence: 97%

“…The PMA usually originates unilaterally at the posterior aspect of the extracranial VA at C-1. 6 More rarely, other origins are possible (such as the occipital artery, ascending pharyngeal artery, and PICA).…”

Section: Discussionmentioning

confidence: 99%

Posterior cervical spinal cord infarction complicating the treatment of an intracranial dural arteriovenous fistula embolization

Blanc

Hosseini

Guérinel

et al. 2006

SPI

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✓ Acute ischemic infarction of the posterolateral bulbomedullary junction occurred in a 28-year-old man who underwent arterial embolization for the treatment of an intracranial dural arteriovenous malformation. The migration of the embolic agent in the posterior spinal artery via a peripheral anastomosis between the middle meningeal artery and the posterior meningeal artery was responsible for this complication. The cast of glue in the radiculopial system at the upper cervical level was visible on computed tomography scanning, and magnetic resonance imaging demonstrated circumscribed signal changes and restricted diffusion in the arterial territory of the bulbomedullary junction. The authors discuss the anatomical, clinical, and technical issues of this rare complication.

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“…6 Dysgenetic segments will result in the establishment of collateral flow from the external carotid, vertebral-basilar, or contralateral carotid to ensure adequate vascularization of distal territories 6…”

Section: Discussionmentioning

confidence: 99%

Anomalous course of the intracranial internal carotid artery into the orbit: case report

Blackburn

Dannenbaum

Schuette

et al. 2011

J NeuroIntervent Surg

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In this report, a case of anomalous internal carotid artery looping into the orbital apex is presented. The patient was a 41-year-old man with sudden onset headache, suggestive of aneurysmal subarachnoid hemorrhage (SAH). Imaging with CT demonstrated a perimesencephalic distribution of blood. Cerebral angiography confirmed non-aneurysmal, perimesencephalic SAH, but incidentally noted an anomalous left internal carotid artery with a course into the orbital cone. This is the only known example of this anatomic variation. Potential embryological explanations are discussed.

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Surgical Neuroangiography

Cited by 47 publications

References 195 publications

Complex right hemisphere developmental venous anomaly associated with multiple facial hemangiomas

Complex right hemisphere developmental venous anomaly associated with multiple facial hemangiomas

Posterior cervical spinal cord infarction complicating the treatment of an intracranial dural arteriovenous fistula embolization

Anomalous course of the intracranial internal carotid artery into the orbit: case report

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