Low grade astrocytoma: Difference between revisions

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{{familytree |boxstyle=background: #DCDCDC;| | | | | | | |!| | | | | C01 | | C02 | | C03 | | C04 | | | | | | | | | | | | | |C01=<div style="width: 9em; padding:0.2em;">'''[[Fibrillary astrocytoma]]''' </div>|C02=<div style="width: 9em; padding:0.2em;">'''Gemistocytic astrocytoma'''</div>|C03=<div style="width: 9em; padding:0.2em;">'''Protoplasmic astrocytoma'''</div>|C04=<div style="width: 9em; padding:0.2em;">'''Mixed tumors ([[oligoastrocytoma]])<br>'''</div>}}
{{familytree |boxstyle=background: #DCDCDC;| | | | | | | |!| | | | | C01 | | C02 | | C03 | | C04 | | | | | | | | | | | | | |C01=<div style="width: 9em; padding:0.2em;">'''[[Fibrillary astrocytoma]]''' </div>|C02=<div style="width: 9em; padding:0.2em;">'''Gemistocytic astrocytoma'''</div>|C03=<div style="width: 9em; padding:0.2em;">'''Protoplasmic astrocytoma'''</div>|C04=<div style="width: 9em; padding:0.2em;">'''Mixed tumors ([[oligoastrocytoma]])<br>'''</div>}}
{{familytree |boxstyle=background: #DCDCDC;| |,|-|-|-|v|-|^|-|v|-|-|-|.| | | | | | | | | | | | | | | | | |}}
{{familytree |boxstyle=background: #DCDCDC;| |,|-|-|-|v|-|^|-|v|-|-|-|.| | | | | | | | | | | | | | | | | |}}
{{familytree |boxstyle=background: #DCDCDC;| D01 | | D02 | | D03 | | D04 | | | | | | | | | | | | | | | | | | | | |D01=<div style="width: 9em; padding:0.2em;">'''[[Pilocytic astrocytoma]]<br>(WHO grade I)<br>''' </div>|D02=<div style="width: 9em; padding:0.2em;">'''Pilomyxoid astrocytoma<br>(WHO grade II)'''</div>|D03=<div style="width: 9em; padding:0.2em;">'''[[Subependymal giant cell astrocytoma]]<br>(WHO grade I)'''</div>|D04=<div style="width: 9em; padding:0.2em;">'''[[Pleomorphic xanthoastrocytoma]]<br>(WHO grade II)'''</div>}}
{{familytree |boxstyle=background: #DCDCDC;| D01 | | D02 | | D03 | | D04 | | | | | | | | | | | | | | | | | | | | |D01=<div style="width: 9em; padding:0.2em;">'''[[Pilocytic astrocytoma]]''' </div>|D02=<div style="width: 9em; padding:0.2em;">'''Pilomyxoid astrocytoma'''</div>|D03=<div style="width: 9em; padding:0.2em;">'''[[Subependymal giant cell astrocytoma]]'''</div>|D04=<div style="width: 9em; padding:0.2em;">'''[[Pleomorphic xanthoastrocytoma]]'''</div>}}
{{familytree |boxstyle=background: #DCDCDC;| E01 | | E02 | | E03 | | E04 | | | | | | | | | | | | | | | | | | | | |D01=<div style="width: 9em; padding:0.2em;">'''WHO grade I''' </div>|D02=<div style="width: 9em; padding:0.2em;">'''WHO grade II'''</div>|D03=<div style="width: 9em; padding:0.2em;">'''WHO grade I'''</div>|D04=<div style="width: 9em; padding:0.2em;">'''WHO grade II'''</div>}}
{{familytree |boxstyle=background: #DCDCDC;| E01 | | E02 | | E03 | | E04 | | | | | | | | | | | | | | | | | | | | |E01=<div style="width: 9em; padding:0.2em;">'''WHO grade I''' </div>|E02=<div style="width: 9em; padding:0.2em;">'''WHO grade II'''</div>|E03=<div style="width: 9em; padding:0.2em;">'''WHO grade I'''</div>|E04=<div style="width: 9em; padding:0.2em;">'''WHO grade II'''</div>}}
{{familytree/end}}
{{familytree/end}}



Revision as of 20:25, 5 January 2016

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Associate Editor(s)-in-Chief: Sujit Routray, M.D. [2]

Overview

  • Astrocytoma is a primary intracranial tumor. They may arise in the cerebral hemispheres, in the posterior fossa, in the optic nerve, and rarely, the spinal cord. It originates in a particular kind of glial-cells, star-shaped brain cells in the cerebrum called astrocytes. This type of tumor does not usually spread outside the brain and spinal cord and it does not usually affect other organs. Astrocytoma is the most common glioma and can occur in most parts of the brain and occasionally in the spinal cord. To know more about astrocytoma, click here.
  • Astrocytoma is classified broadly into low-grade and high-grade astrocytoma. To know more about high-grade astrocytoma, click here.
  • Low-grade astrocytoma is classified into four subtypes, and they are as follows:[1]


 
 
 
 
 
 
 
 
 
 
 
 
Low-grade astrocytoma
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Low-grade infiltrative astrocytoma
OR
Diffuse astrocytoma
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Gemistocytic astrocytoma
 
Protoplasmic astrocytoma
 
Mixed tumors (oligoastrocytoma)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Pilomyxoid astrocytoma
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
WHO grade I
 
WHO grade II
 
WHO grade I
 
WHO grade II
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

References

  1. Low grade infiltrative astrocytoma. Dr Ahmed Abd Rabou and A.Prof Frank Gaillard ◉ et al. Radiopaedia 2016. http://radiopaedia.org/articles/low-grade-infiltrative-astrocytoma. Accessed on January 5, 2016

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