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Oncocytic meningioma: a case report.

Adele Caldarella1, Anna Maria Buccoliero, Mirca Marini

  • 1Dipartimento di Patologia Umana e Oncologia, Università degli Studi di Firenze, Italy.

Pathology, Research and Practice
|April 4, 2002
PubMed
Summary

Oncocytic meningioma, a rare tumor, is characterized by large cells with granular cytoplasm due to abundant mitochondria. This case highlights its distinct histological and ultrastructural features.

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Area of Science:

  • Neuropathology
  • Oncology
  • Cell Biology

Background:

  • Oncocytic meningioma is a rare variant of meningothelial neoplasms.
  • It is characterized by large cells with abundant granular cytoplasm.

Observation:

  • This report details an additional case of oncocytic meningioma.
  • The tumor exhibited distinct histological features, including numerous cells with granular cytoplasm.
  • Ultrastructural examination revealed a high density of mitochondria within the cytoplasm.

Findings:

  • The histological and ultrastructural findings differentiate oncocytic meningioma from other granular cell tumors.
  • Immunohistochemical methods were employed to further investigate the tumor's characteristics.

Implications:

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  • Understanding the unique cellular and mitochondrial features of oncocytic meningioma is crucial for accurate diagnosis.
  • This case contributes to the literature on rare meningioma variants, aiding in differential diagnosis and potentially informing future research.