Ganglioglioma pathophysiology: Difference between revisions
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{{Ganglioglioma}} | |||
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==Overview== | |||
A ganglioglioma arises from neuronal [[glial]] cells, which are cells of the [[central nervous system]]. On gross pathology, a ganglioglioma varies from being a partially cystic mass with a mural nodule to a solid mass expanding the overlying [[gyrus]]. On microscopic pathology, a ganglioglioma is composed of [[ganglion cells]] and [[neoplastic]] [[glial]] cells with positive staining for [[synaptophysin]], neuronal specific [[enolase]], and [[GFAP]]. | |||
==Pathophysiology== | |||
===Genetics=== | |||
Development of ganglioglioma is the result of multiple genetic mutations. Genes involved in the pathogenesis of ganglioglioma include ''p53'' and ''p16''.<ref>Genetics of ganglioglioma. Oxford journals Neuro-Oncology. http://neuro-oncology.oxfordjournals.org/content/9/2/124.full</ref> | |||
===Gross Pathology=== | |||
===Microscopic Pathology=== | |||
Gangliogliomas are composed of two cell populations:<ref name=dd>Pathophysiology of ganglioglioma. Dr Henry Knipe and Dr Frank Gaillard et al. Radiopaedia 2015. http://radiopaedia.org/articles/ganglioglioma</ref> | |||
*Ganglion cells (large mature neuronal elements): ''ganglio-'' | |||
*Neoplastic glial elements (astrocytic): ''-glioma'' | |||
The glial component determines the biological behaviour of ganglioglioma. Dedifferentiation into high grade tumors may occur, and usually involves the glial component. | |||
===Markers=== | |||
==References== | |||
{{reflist|2}} | |||
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Revision as of 13:24, 31 July 2019
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Associate Editor(s)-in-Chief: Sujit Routray, M.D. [2]
Overview
A ganglioglioma arises from neuronal glial cells, which are cells of the central nervous system. On gross pathology, a ganglioglioma varies from being a partially cystic mass with a mural nodule to a solid mass expanding the overlying gyrus. On microscopic pathology, a ganglioglioma is composed of ganglion cells and neoplastic glial cells with positive staining for synaptophysin, neuronal specific enolase, and GFAP.
Pathophysiology
Genetics
Development of ganglioglioma is the result of multiple genetic mutations. Genes involved in the pathogenesis of ganglioglioma include p53 and p16.[1]
Gross Pathology
Microscopic Pathology
Gangliogliomas are composed of two cell populations:[2]
- Ganglion cells (large mature neuronal elements): ganglio-
- Neoplastic glial elements (astrocytic): -glioma
The glial component determines the biological behaviour of ganglioglioma. Dedifferentiation into high grade tumors may occur, and usually involves the glial component.
Markers
References
- ↑ Genetics of ganglioglioma. Oxford journals Neuro-Oncology. http://neuro-oncology.oxfordjournals.org/content/9/2/124.full
- ↑ Pathophysiology of ganglioglioma. Dr Henry Knipe and Dr Frank Gaillard et al. Radiopaedia 2015. http://radiopaedia.org/articles/ganglioglioma