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Cigarette Smoke Exposure Ontology
Last uploaded:
July 10, 2014
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| Id | http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#Pleomorphic_Xanthoastrocytoma
http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#Pleomorphic_Xanthoastrocytoma
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| Preferred Name | Pleomorphic Xanthoastrocytoma |
| Type | http://www.w3.org/2002/07/owl#Class |
All Properties
| label |
Pleomorphic Xanthoastrocytoma
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|---|---|
| prefLabel |
Pleomorphic Xanthoastrocytoma
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| DEFINITION |
An astrocytic tumor with a relatively favorable prognosis (WHO grade II), typically encountered in children and young adults. It has a superficial location in the cerebral hemispheres and involvement of the meninges. Characteristic features include pleomorphic and lipidized cells expressing GFAP and often surrounded by a reticulin network as well as eosinophilic granular bodies. For lesions with significant mitotic activity (5 or more mitoses per 10 HPF) and/or with areas of necrosis, the designation "pleomorphic xanthoastrocytoma with anaplastic features" may be used. (WHO)
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| prefixIRI |
Thesaurus:Pleomorphic_Xanthoastrocytoma
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| subClassOf | |
| FULL_SYN |
Pleomorphic Xantho-Astrocytoma
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| type |
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