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Pathology consultation. Extracranial meningiomas
Abstract:
Extracranial meningiomas are most often due to extension from an intracranial primary and less so from meningocytic cells found with arachnoid clusters or modified mesenchymal cells. The most common presentation of all forms is cutaneous, either primary or secondary. Orbital, paranasal, temporal bone and oral presentations follow in that order.
Insights
Extracranial meningiomas typically arise from intracranial tumors, with cutaneous presentation being most common. Other locations include the orbit, paranasal sinuses, temporal bone, and oral cavity.
Area of Science:
- Neurosurgery
- Oncology
Background:
- Extracranial meningiomas are rare tumors.
- They can arise from intracranial primary tumors or ectopic mening cells.
Purpose of the Study:
- To describe the origins and common presentations of extracranial meningiomas.
Main Methods:
- Review of existing literature and case studies.
- Analysis of tumor origin and location data.
Main Results:
- Most extracranial meningiomas result from intracranial extension.
- Cutaneous presentation is the most frequent form.
- Orbital, paranasal, temporal bone, and oral cavity are subsequent common sites.
Conclusions:
- Understanding the origins and common presentations is crucial for diagnosis and management.
- Cutaneous and orbital sites are key areas for clinical suspicion.