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  • Title: Regional parenchymal enhancement with mixed cavernous/venous malformations of the brain. Case report.
    Author: Comey CH, Kondziolka D, Yonas H.
    Journal: J Neurosurg; 1997 Jan; 86(1):155-8. PubMed ID: 8988095.
    Abstract:
    With improvements in imaging technology, the detection of both cavernous malformations and venous malformations has increased markedly in recent years. Although much has been learned about the association of cavernous and venous malformations, important questions regarding the true nature of such a relationship remain unanswered. It has been proposed that certain venous malformations produce local venous hypertension with resultant microhemorrhage, growth factor release, and creation of cavernous malformations. The authors report on two patients with cerebellopontine venous malformations associated with cavernous malformations. Both patients demonstrated persistent regional parenchymal enhancement associated with the vascular malformations. In addition, both patients had significant clinical symptoms referable to the region of affected brain. This previously undescribed finding may represent an imaging correlate to the complex interaction among venous malformations, venous hypertension, and cavernous malformations.
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