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Primary Pulmonary Meningioma Simulating a Pulmonary Metastasis

Chun-Mao Juan1, Mei-Ling Chen2, Shang-Yun Ho1

  • 1Department of Medical Imaging, Changhua Christian Hospital, No. 135 Nanxiao St., Changhua 500, Taiwan.

Case Reports in Pulmonology
|December 16, 2016
PubMed

Insights

Primary pulmonary meningiomas (PPMs) are rare lung tumors. This case highlights a PPM initially misdiagnosed as metastatic cancer due to its appearance on CT scans.

Area of Science:

  • Thoracic oncology
  • Diagnostic imaging
  • Pathology

Background:

  • Primary pulmonary meningiomas (PPMs) are exceptionally rare neoplasms.
  • Most reported PPMs are solitary and benign, but malignant variants exist.
  • Differential diagnosis of pulmonary nodules often includes metastatic disease.

Purpose of the Study:

  • To report a rare case of primary pulmonary meningioma.
  • To discuss the diagnostic challenges posed by PPMs mimicking metastatic cancer.
  • To emphasize the importance of recognizing PPMs' radiologic features.

Main Methods:

  • Case report of a 55-year-old male with a history of buccal cancer.
  • Radiologic evaluation using chest computed tomography (CT) scan.
  • Clinical and pathological review of the presented case.

Main Results:

  • A single, round, small, ground-glass opacity pulmonary nodule was identified on CT.
  • The lesion was initially suspected to be a pulmonary metastasis from buccal cancer.
  • Histopathological examination confirmed the diagnosis of primary pulmonary meningioma.

Conclusions:

  • Primary pulmonary meningiomas can present as solitary pulmonary nodules, mimicking metastatic disease.
  • Awareness of the clinical and radiologic characteristics of PPMs is crucial for accurate diagnosis.
  • Multidisciplinary team collaboration is essential for appropriate management of rare pulmonary tumors.

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