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Secretory meningioma with lipomatous component: case report
1Department of Neurosurgery, University of Occupational and Environmental Health, School of Medicine, Kitakyushu City, Japan. y-arisa@info-niigata.or.jp
Abstract:
A case of meningioma coexisting with both lipomatous and secretory components, the latter characterized by hyaline inclusion bodies, is reported. The neuroradiological features of lipomeningioma are reevaluated, and the possible pathogenetic mechanisms of this unique combination in the present case are discussed.
Insights
This report details a rare meningioma with both lipomatous and secretory features, including hyaline inclusion bodies. The study reevaluates neuroradiological findings and discusses potential causes for this unusual tumor combination.
Area of Science:
- Neuro-oncology
- Pathology
- Radiology
Background:
- Meningiomas are common primary tumors of the central nervous system.
- Lipomeningiomas represent a rare subtype, characterized by lipomatous differentiation.
- Secretory meningiomas are also recognized, distinguished by specific cellular features.
Observation:
- A unique case of meningioma exhibiting concurrent lipomatous and secretory components is presented.
- The secretory component was histologically defined by the presence of hyaline inclusion bodies.
- Neuroradiological imaging characteristics of this lipomeningioma were meticulously analyzed.
Findings:
- The coexistence of lipomatous and secretory elements in a single meningioma is exceptionally rare.
- Hyaline inclusion bodies are a key diagnostic feature of the secretory component.
- Neuroradiological findings were correlated with histopathological observations.
Implications:
- This case expands the known spectrum of meningioma subtypes.
- Understanding the pathogenetic mechanisms of combined lipomatous and secretory differentiation is crucial.
- Further research may elucidate the developmental pathways leading to such complex meningiomas.
