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Updated: Mar 2, 2026

A Patient-Derived Xenograft Model for Venous Malformation
Published on: June 15, 2020
[Pathologic vascular malformations of the spinal cord]
1Service de neurochirurgie Hôpital Henri-Mondor 94010 Créteil.
Insights
Spinal cord vascular malformations, including arteriovenous malformations and cavernomas, are classified by imaging and histology. Magnetic resonance imaging aids diagnosis, often obviating angiography for these rare conditions.
Area of Science:
- Neurology
- Radiology
- Pathology
Context:
- Spinal cord vascular malformations present diagnostic challenges.
- Classification systems are crucial for understanding these lesions.
- Radiological and histological features guide diagnosis.
Purpose:
- To classify spinal cord vascular malformations based on radiological and histological findings.
- To highlight the diagnostic utility of Magnetic Resonance Imaging (MRI).
- To discuss the relative frequencies of different malformation types.
Summary:
- Spinal cord vascular malformations are categorized into arteriovenous malformations (AVMs), cavernomas, arterial aneurysms, and venous malformations.
- AVMs are the most common, including dural arteriovenous fistulas and intradural AVMs.
- Intradural cavernomas, arterial aneurysms, and venous malformations are rarer, with specific considerations for their location and presentation.
Impact:
- Provides a structured classification for spinal cord vascular malformations.
- Emphasizes the diagnostic role of MRI, potentially reducing the need for invasive angiography.
- Enhances understanding of the prevalence and characteristics of various spinal vascular lesions.
Abstract:
Like for the intracranial level, spinal cord vascular malformations can be classified, according to their radiological (particularly arteriographic) and histological aspects, as: arteriovenous malformations, cavernomas and so-called malformations, arterial aneurysms, and venous malformations. This classification should also include the involvement of the surrounding envelopes. Clinical manifestations are not always typical. Magnetic resonance imaging is useful for diagnosis, and angiography is not always necessary nowadays. Arteriovenous malformations are the most frequent vascular malformations; they are equally represented by arteriovenous fistulas of the dura mater and intradural arteriovenous malformations. Intradural cavernomas are rare as compared to arteriovenous malformations. Intradural arterial aneurysms are a rare, owing to local haemodynamic conditions. Venous malformations are exceptional; some intramedullar forms have been recently reported.
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