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A case of primary meningioma of the frontal sinus
A Brunori1, P Scarano, R Colacecchi
1Department of Neurosciences, G.M. Lancisi Division of Neurosurgery, Ospedale San Camillo, Rome, Italy. brunoria@tin.it
Abstract:
A case of right frontal sinus tumor which at histology turned out to be a psammomatous meningioma is reported. The occurrence of primary meningiomas within the paranasal sinuses is rare and probably related to the transformation of embryonic arachnoid cell remnants or ectopic meningocytes derived from pluripotential mesenchymal cells. A search of the literature disclosed 30 further cases of meningiomas primarily involving the paranasal sinuses: a short analysis of the latters is presented and some of the distinctive features of these unusual tumors, as compared to their intracranial counterpart, are emphasized.
Insights
This case report details a rare psammomatous meningioma found in the frontal sinus. Further analysis of 30 similar cases highlights unique features of these sinonasal tumors.
Area of Science:
- Neuro-oncology
- Otorhinolaryngology
- Pathology
Background:
- Primary meningiomas in paranasal sinuses are exceptionally rare.
- Etiology may involve embryonic arachnoid cell rests or ectopic meningocytes.
Observation:
- A case of a right frontal sinus tumor histologically identified as a psammomatous meningioma is presented.
- A literature review identified 30 additional primary sinonasal meningioma cases.
Findings:
- Psammomatous meningiomas can occur primarily within the paranasal sinuses.
- Distinctive features of sinonasal meningiomas differ from their intracranial counterparts.
Implications:
- Understanding the unique characteristics of sinonasal meningiomas is crucial for diagnosis and treatment.
- This study contributes to the limited literature on these rare tumors, aiding future research and clinical management.