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Incidental Metaplastic Primary Pulmonary Meningioma
Tingting Barrett1, Zeegan George2, Katsiaryna Khatskevich1
1Department of Pathology and Laboratory Medicine, Medical University of South Carolina, Charleston, SC, USA.
International Journal of Surgical Pathology
|July 24, 2023
Summary
A rare primary pulmonary meningioma, a benign lung tumor, was diagnosed in a 54-year-old woman. This case highlights a unique subtype with mesenchymal differentiation, previously undescribed in medical literature.
Area of Science:
- Oncology
- Pathology
- Pulmonology
Background:
- Primary pulmonary meningioma is a rare, benign tumor.
- It often presents as a solitary pulmonary nodule, mimicking lung cancer or metastases.
- Misinterpretation on imaging studies is common.
Purpose of the Study:
- To report a rare case of primary pulmonary meningioma.
- To describe a unique subtype with mesenchymal differentiation.
- To increase awareness of this rare lung tumor.
Main Methods:
- Case presentation of a 54-year-old female patient.
- Review of imaging studies.
- Histopathological diagnosis following surgical resection.
Main Results:
- An incidentally discovered solitary lung nodule was diagnosed as metaplastic primary pulmonary meningioma.
- The tumor exhibited focal or global mesenchymal differentiation.
- This represents the first reported case of primary pulmonary meningioma with mesenchymal differentiation in English literature.
Conclusions:
- Metaplastic primary pulmonary meningioma is a rare WHO grade 1 meningioma subtype.
- This case expands the understanding of pulmonary meningioma variations.
- Early recognition and accurate diagnosis are crucial for appropriate patient management.
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