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Primary Pulmonary Meningioma With Rhabdoid Features

Rūta Žulpaitė1, Žymantas Jagelavičius1, Ugnius Mickys1

  • 11 Vilnius University, Vilnius, Lithuania.

International Journal of Surgical Pathology
|December 20, 2018
PubMed

Insights

Primary pulmonary meningiomas (PPMs) are rare tumors. This case report details a World Health Organization grade III PPM with rhabdoid features, successfully treated with surgery, showing no recurrence after two years.

Area of Science:

  • Oncology
  • Thoracic Surgery
  • Pathology

Background:

  • Meningiomas typically occur in the head and neck region, with primary extrameningeal locations accounting for only 1-2% of cases.
  • Primary pulmonary meningiomas (PPMs) are exceptionally rare, with fewer than 50 cases documented in medical literature.
  • Malignant PPMs are exceedingly uncommon, with only five previously reported instances of confirmed or possible malignancy.

Observation:

  • This report presents a rare case of a primary pulmonary meningioma (PPM).
  • The tumor exhibited rhabdoid features, classified as World Health Organization (WHO) grade III.
  • Despite the high grade, the tumor lacked other indicators of malignancy.

Findings:

  • The patient underwent thoracoscopic wedge resection for the WHO grade III PPM.
  • Post-surgery, the patient has remained disease-free for two years.
  • This case suggests a favorable prognosis for certain high-grade PPMs.

Implications:

  • The World Health Organization (WHO) grading system for intracranial meningiomas may not perfectly predict the behavior of ectopic PPMs.
  • Further research is needed to understand the prognostic factors for rare extrameningeal meningiomas.
  • This case highlights the importance of individualized assessment and surgical management for PPMs.
Keywords:
extracranial meningiomalung tumorprimary pulmonary meningiomarhabdoid meningiomathoracoscopic surgery

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