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Metaplastic meningioma with lipomatous changes

D Jesionek-Kupnicka1, P P Liberski, R Kordek

  • 1Department of Tumor Pathology, School of Medicine, Lódź.

Folia Neuropathologica
|January 1, 1997
PubMed
Summary

Rare lipomatous metaplasia was observed in a transitional meningioma, likely due to its long clinical course. This finding offers insights into meningioma evolution and lipidization in brain tumors.

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Area of Science:

  • Neuropathology
  • Oncology
  • Developmental Biology

Background:

  • Transitional meningiomas are common primary brain tumors arising from meningeal cells.
  • Lipomatous metaplasia, the transformation of cells into fat cells, is an uncommon finding in meningiomas.

Observation:

  • A rare case of transitional meningioma exhibiting extensive lipomatous metaplasia is presented.
  • The tumor evolved over 30 years, initially misdiagnosed as multiple sclerosis.
  • Histological examination revealed characteristic meningioma cells alongside mature adipocyte-like cells with significant lipid accumulation.

Findings:

  • The study documents lipomatous metaplastic changes within a transitional meningioma.
  • These changes are hypothesized to be a consequence of the tumor's prolonged clinical history.

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  • The lipidization observed resembles that seen in other brain tumors.

    • Implications:

    • This case expands the understanding of meningioma heterogeneity and potential evolutionary pathways.
    • It highlights the importance of considering metaplastic changes in the differential diagnosis of meningiomas.
    • Further research into the histogenesis of lipidized meningiomas and their relationship to meningeal embryogenesis is warranted.