Pilocytic astrocytoma: Difference between revisions
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== Overview == | == Overview == | ||
'''Pilocytic astrocytoma''' is a brain tumor that occurs predominantly in children and involves the midline, basal and posterior [[fossa]] structures. It is generally considered a [[benign]] tumor of childhood. It is often [[cystic]] and if solid, it tends to be well circumscribed. It is characteristically a contrast enhancing tumor by current imaging investigations (e.g. [[CT scan]], [[MRI]]) | '''Pilocytic astrocytoma''' is a brain tumor that occurs predominantly in children and involves the midline, basal and posterior [[fossa]] structures. It is generally considered a [[benign]] tumor of childhood. It is often [[cystic]] and if solid, it tends to be well circumscribed. It is characteristically a contrast enhancing tumor by current imaging investigations (e.g. [[CT scan]], [[MRI]]) | ||
Microscopically, the tumor is composed of bipolar cells with long "hairlike" [[GFAP]]-positive processes. [[Rosenthal fiber]]s, [[eosinophilic]] granular bodies and microcysts are often present. | Microscopically, the tumor is composed of bipolar cells with long "hairlike" [[GFAP]]-positive processes. [[Rosenthal fiber]]s, [[eosinophilic]] granular bodies and microcysts are often present. | ||
It is classified as '''Grade 1 [[Astrocytoma]]'''. | It is classified as '''Grade 1 [[Astrocytoma]]'''. | ||
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== Acknowledgements == | == Acknowledgements == | ||
Initial content for this page in some instances came from [http://www.wikipedia.org Wikipedia] | |||
[[no:Pilocytisk astrocytom]] | [[no:Pilocytisk astrocytom]] | ||
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[[Category:Neurology]] | [[Category:Neurology]] | ||
[[Category:Oncology]] | [[Category:Oncology]] | ||
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Revision as of 13:14, 21 January 2012
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
Pilocytic astrocytoma is a brain tumor that occurs predominantly in children and involves the midline, basal and posterior fossa structures. It is generally considered a benign tumor of childhood. It is often cystic and if solid, it tends to be well circumscribed. It is characteristically a contrast enhancing tumor by current imaging investigations (e.g. CT scan, MRI) Microscopically, the tumor is composed of bipolar cells with long "hairlike" GFAP-positive processes. Rosenthal fibers, eosinophilic granular bodies and microcysts are often present. It is classified as Grade 1 Astrocytoma.
External links
- Medical Image Database
- UC
- fightJPA - An Organization Dedicated to Funding Research into Juvenile Pilocytic Astrocytoma
Acknowledgements
Initial content for this page in some instances came from Wikipedia