Arterial relationships to the nerves and some rigid structures in the posterior cranial fossa

Surchev, N.

doi:10.1002/ca.20648

Cited by 7 publications

(3 citation statements)

References 46 publications

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“…There are close anatomic relationships between the vertebral arteries and the hypoglossal nerve at its entry to the hypoglossal canal, as well as between the BA and the glossopharyngeal, vagus, accessory, facial, vestibulocochlear, abducent, trigeminal, trochlear, and oculomotor nerves at their entry points to the skull and dural foramina (18) (Fig 1). This close relationship predisposes the cranial nerves to compression in the event of a change in the diameter or course of the vertebrobasilar arteries.…”

Section: Review Of Anatomymentioning

confidence: 99%

Multimodality Imaging of Vertebrobasilar Dolichoectasia: Clinical Presentations and Imaging Spectrum

Samim¹,

Goldstein²,

Schindler³

et al. 2016

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Vertebrobasilar dolichoectasia (VBD) is characterized by ectasia, elongation, and tortuosity of the vertebrobasilar arteries, with a high degree of variability in clinical presentation. The disease origin is believed to involve degeneration of the internal elastic lamina, thinning of the media secondary to reticular fiber deficiency, and smooth muscle atrophy. The prevalence of VBD is variable, ranging from 0.05% to 18%. Most patients with VBD are asymptomatic and their VBD is detected incidentally; however, it is important to recognize that the presence of symptoms, which can lead to clinically significant morbidity and sometimes mortality, may influence clinical management. The most important clinical presentations of VBD are vascular events, such as ischemic stroke and catastrophic intracranial hemorrhage, or progressive compressive symptoms related to compression of adjacent structures, including the cranial nerves, brainstem, or third ventricle, causing hydrocephalus. The imaging diagnostic criteria for computed tomography and magnetic resonance (MR) imaging include three quantitative measures of basilar artery morphology: laterality score, height of bifurcation, and basilar artery diameter. The authors review the relevant anatomy and disease origin of VBD; pertinent imaging findings, including intraluminal thrombus and relation to the cranial nerves; and imaging pitfalls, such as the hyperintense vessel sign on MR images and artifacts related to slow flow in the dolichoectatic vessel. In addition, clinical manifestations, the role of radiology in diagnosis and management of this condition, and available management options are reviewed. (©)RSNA, 2016.

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Section: Review Of Anatomymentioning

confidence: 99%

Multimodality Imaging of Vertebrobasilar Dolichoectasia: Clinical Presentations and Imaging Spectrum

Samim¹,

Goldstein²,

Schindler³

et al. 2016

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“…Another adult cadaver study examined the relations of nerves, vessels, and some bony structures in posterior cranial fossa (Surchev 2008). They found some degree of variation in the position of the lower half of basilar artery.…”

Section: Discussionmentioning

confidence: 99%

Morphometric characteristics of caudal cranial nerves at petroclival region in fetuses

et al. 2015

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Morphometric measurements of cranial nerves in posterior cranial fossa of fetus cadavers were carried out in an attempt to identify any asymmetry in their openings into the cranium. Twenty-two fetus cadavers (8 females, 14 males) with gestational age ranging between 22 and 38 weeks (mean 30 weeks) were included in this study. The calvaria were removed, the brains were lifted, and the cranial nerves were identified. The distance of each cranial nerve opening to midline and the distances between different cranial nerve openings were measured on the left and right side and compared. The mean clivus length and width were 21.2 ± 4.4 and 13.2 ± 1.5 mm, respectively. The distance of the twelfth cranial nerve opening from midline was shorter on the right side when compared with the left side (6.6 ± 1.1 versus 7.1 ± 0.8 mm, p = 0.038). Openings of other cranial nerves did not show such asymmetry with regard to their distance from midline, and the distances between different cranial nerves were similar on the left and right side. Cranial nerves at petroclival region seem to show minimal asymmetry in fetuses.

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“…glossopharyngeus, vagus, accessorius, facialis, vestibulocochlearis, abducens, trigeminus, trochlearis und oculomotorius an ihren Eintrittsstellen in den Schädel und die Foramina der Dura mater (▶ Abb. 1) [18]. Diese enge Beziehung prädisponiert die Hirnnerven für eine Kompression, wenn sich der Durchmesser oder der Verlauf der vertebrobasilären Arterien verändert.…”

Section: Merkeunclassified

Multimodale Bildgebung der vertebrobasilären Dolichoektasie

Samim¹,

Goldstein²,

Schindler³

et al. 2018

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Vertebrobasilar dolichoectasia (VBD) is characterized by ectasia, elongation, and tortuosity of the vertebrobasilar arteries, with a high degree of variability in clinical presentation. The disease origin is believed to involve degeneration of the internal elastic lamina, thinning of the media secondary to reticular fiber deficiency, and smooth muscle atrophy. The prevalence of VBD is variable, ranging from 0.05?% to 18?%. Most patients with VBD are asymptomatic and their VBD is detected incidentally; however, it is important to recognize that the presence of symptoms, which can lead to clinically significant morbidity and sometimes mortality, may influence clinical management. The most important clinical presentations of VBD are vascular events, such as ischemic stroke and catastrophic intracranial hemorrhage, or progressive compressive symptoms related to compression of adjacent structures, including the cranial nerves, brainstem, or third ventricle, causing hydrocephalus. The imaging diagnostic criteria for computed tomography and magnetic resonance (MR) imaging include three quantitative measures of basilar artery morphology: laterality score, height of bifurcation, and basilar artery diameter. The authors review the relevant anatomy and disease origin of VBD; pertinent imaging findings, including intraluminal thrombus and relation to the cranial nerves; and imaging pitfalls, such as the hyperintense vessel sign on MR images and artifacts related to slow flow in the dolichoectatic vessel. In addition, clinical manifestations, the role of radiology in diagnosis and management of this condition, and available management options are reviewed.

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Arterial relationships to the nerves and some rigid structures in the posterior cranial fossa

Cited by 7 publications

References 46 publications

Multimodality Imaging of Vertebrobasilar Dolichoectasia: Clinical Presentations and Imaging Spectrum

Multimodality Imaging of Vertebrobasilar Dolichoectasia: Clinical Presentations and Imaging Spectrum

Morphometric characteristics of caudal cranial nerves at petroclival region in fetuses

Multimodale Bildgebung der vertebrobasilären Dolichoektasie

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