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Related Experiment Video

Updated: Jun 23, 2026

Endoscopic Endonasal Trans-sphenoidal Approach: Minimally Invasive Surgery for Pituitary Adenomas
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Primary mediastinal malignant meningioma.

Xueying Yang1, Xin Gao, Shumin Wang

  • 1Department of Thoracic Surgery, The Northern Hospital, Shenyang, Liaoning, China. yangxueying1974@163.com

European Journal of Cardio-Thoracic Surgery : Official Journal of the European Association for Cardio-Thoracic Surgery
|May 5, 2009
PubMed
Summary

This report details the first documented case of primary mediastinal malignant meningioma, an exceptionally rare ectopic tumor. Diagnosis relies on microscopic and immunohistochemical analysis, with surgery as the primary treatment.

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Area of Science:

  • Oncology
  • Pathology
  • Neurosurgery

Background:

  • Ectopic meningiomas are rare tumors typically found in the head and neck.
  • Primary meningiomas in the mediastinum are exceptionally uncommon.
  • Malignant variants of ectopic meningiomas are exceedingly rare, with no prior official reports.

Observation:

  • This study presents the first officially reported case of a primary mediastinal malignant meningioma.
  • The case involved a detailed analysis of clinical features, treatment strategies, and pathological findings.
  • Literature review focused on ectopic meningioma, highlighting diagnostic criteria and management.

Findings:

  • Diagnosis of ectopic meningioma requires definitive microscopic and immunohistochemical evidence.
  • Surgical resection is the primary therapeutic approach for ectopic meningioma.

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Last Updated: Jun 23, 2026

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  • Postoperative radiotherapy is recommended for cases with suspected invasive meningioma characteristics.

    • Implications:

    • This case expands the known spectrum of meningioma presentation.
    • It underscores the importance of comprehensive diagnostic methods for rare tumors.
    • Establishes a precedent for reporting and managing primary mediastinal malignant meningiomas.