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Symptomatic cavernous malformations affecting the spine and spinal cord

M J Harrison1, M B Eisenberg, J S Ullman

  • 1Department of Neurosurgery, Mount Sinai Hospital, New York, New York, USA.

Neurosurgery
|August 1, 1995
PubMed
Summary

Spinal cavernous malformations, including those in the vertebral body and spinal cord, are a single entity. Despite varied locations, their histology is identical, suggesting a unified approach to understanding and treating these vascular hamartomas.

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Area of Science:

  • Neurosurgery
  • Pathology
  • Vascular Malformations

Background:

  • Symptomatic cavernous malformations (CMs) affect the spine and spinal cord.
  • Existing literature often segregates CMs based on location (e.g., vertebral body vs. intradural).
  • CMs are developmental vascular hamartomas, typically not growing by mitosis, yet expansion is observed.

Purpose of the Study:

  • To review ten cases of spinal CMs with diverse pathological findings.
  • To challenge the neurosurgical literature's segregation of CMs by location.
  • To propose that spinal CMs represent a single pathological entity.

Main Methods:

  • Retrospective review of ten symptomatic spinal cavernous malformation cases.
  • Histological, electron microscopic, and immunohistochemical analysis of lesions.

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  • Review of therapeutic modalities including observation, embolization, radiation, and surgical resection.

    • Main Results:

    • Lesions across all spinal locations (vertebral body, epidural, intradural, intramedullary) were histologically identical.
    • Expansion of CMs was documented, contrary to their non-mitotic definition.
    • All therapeutic modalities showed effectiveness when tailored to individual patient needs.

    Conclusions:

    • Spinal cavernous malformations are a single pathological entity irrespective of their location.
    • Segregation of CMs by location hinders comprehensive understanding.
    • Management challenges are location-specific, not lesion-specific, supporting a unified view.