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Related Experiment Videos

Recurrent cryptic vascular malformation associated with a developmental venous anomaly.

G Wurm1, M Schnizer, K Nussbaumer

  • 1Department of Neurosurgery, Landesnervenklinik Wagner Jauregg, Linz, Austria. gabriele.wurm@gespag.at

British Journal of Neurosurgery
|June 25, 2003
PubMed
Summary

Developmental venous anomalies (DVAs) may contribute to the development and recurrence of cryptic vascular malformations (CVMs). Occluding a DVA associated with a CVM resolved seizures and neurological deficits in a patient.

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Area of Science:

  • Neurology
  • Vascular Malformations
  • Neuroimaging

Background:

  • Developmental venous anomalies (DVAs) are common, but their clinical significance, particularly in relation to cryptic vascular malformations (CVMs), is debated.
  • Venous outflow disturbance and hypertension within DVAs are increasingly suspected as factors in CVM development.

Observation:

  • A 32-year-old man presented with recurrent, rebleeding CVM in the left angular gyrus, draining into a large DVA.
  • The CVM recurred after initial surgical removal of a cavernoma, with the DVA left intact.
  • A second surgery involved removing a newly formed arteriovenous angioma (AVM) and occluding the associated DVA.

Findings:

  • Histological verification confirmed the recurrent lesion as an AVM.
  • Post-occlusion, the patient experienced no seizures and remained neurologically intact.

Related Experiment Videos

  • This case suggests a potential causal link between DVA venous hypertension and CVM/AVM development or recurrence.

    • Implications:

    • The findings challenge the view of DVAs as incidental findings, suggesting they may actively influence the development and recurrence of other vascular malformations.
    • This case highlights the potential for transitional or hybrid vascular malformations and the role of anomalous venous drainage in their pathophysiology.
    • Further research into the developmental interrelationship between DVAs and CVMs/AVMs is warranted to understand underlying mechanisms.