Changes

|Array findings characteristic of higher grade tumors when histology supports lower grade may suggest increased likelihood of recurrence.  Polysomy,  particularly involving chromosome 5, are seen in angiomatous meningiomas. LOH 1p and/or LOH 1p/14q correlated with anaplastic transformation.

|Array findings characteristic of higher grade tumors when histology supports lower grade may suggest increased likelihood of recurrence.  Polysomy,  particularly involving chromosome 5, are seen in angiomatous meningiomas. LOH 1p and/or LOH 1p/14q correlated with anaplastic transformation.

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'''Mutation:''' NF2, CDKN2A/C, SMARCE1, SMARCB1, TERT  

'''Mutation:''' NF2, CDKN2A/C, SMARCE1, SMARCB1, TERT  

|Gain of 1q  is assocociated with a shorter PFS; Loss of 1p, 9p and 10 appear with greater frequency as tumor grade increases.

|Gain of 1q  is assocociated with a shorter PFS; Loss of 1p, 9p and 10 appear with greater frequency as tumor grade increases.

|<ref name=":24" />PMID:23528542; <ref name=":49" />PMID:27575681; <ref name=":50" />PMID:20015288 <ref name=":50" />PMID:21988727; <ref name=":51" />PMID19918127; <ref name=":52" />PMID:25347344 <ref name=":53" />PMID:23334667; <ref name=":54" />PMID:25963524; <ref name=":55" />PMID:26826201 <ref name=":56" />PMID:28195122; <ref name=":57" />PMID:26323607; PMID:11958368; PMID:25965831; PMID:24536048; PMID:24722350 PMID:12568317; PMID:26771848; PMID:27012381; PMID:27480481; PMID:27624470; PMID:27624470 PMID:27458586; PMID:17225936

|<ref name=":24" />PMID:23528542; <ref name=":49" />PMID:27575681; <ref name=":50" />PMID:20015288 <ref name=":50" />PMID:21988727; <ref name=":51" />PMID19918127; <ref name=":52" />PMID:25347344 <ref name=":53" />PMID:23334667; <ref name=":54" />PMID:25963524; <ref name=":55" />PMID:26826201 <ref name=":56" />PMID:28195122; <ref name=":57" />PMID:26323607; <ref name=":58" />PMID:11958368; <ref name=":59" />PMID:25965831; <ref name=":60" />PMID:24536048; <ref name=":61" />PMID:24722350 <ref name=":62" />PMID:12568317; <ref name=":63" />PMID:26771848; <ref name=":64" />PMID:27012381; <ref name=":65" />PMID:27480481; <ref name=":66" />PMID:27624470; <ref name=":67" />PMID:27458586; <ref name=":68" />PMID:17225936

|-

|-

|

|

'''Amplification:''' RPS6K in higher grades, 17q23

'''Amplification:''' RPS6K in higher grades, 17q23

|Loss of 9p and amplification or gain of 17q23  are more frequent than other abnormalities.  Gain of 1q  is assocociated with a shorter PFS; Loss of 1p, 9p and 10 appear with greater frequency as tumor grade increases.

|Loss of 9p and amplification or gain of 17q23  are more frequent than other abnormalities.  Gain of 1q  is assocociated with a shorter PFS; Loss of 1p, 9p and 10 appear with greater frequency as tumor grade increases.

|<ref name=":24" />PMID:23528542; <ref name=":49" />PMID:27575681; <ref name=":50" />PMID:20015288 <ref name=":50" />PMID:21988727; <ref name=":51" />PMID19918127; <ref name=":52" />PMID:25347344 <ref name=":53" />PMID:23334667; <ref name=":54" />PMID:25963524; <ref name=":55" />PMID:26826201 <ref name=":56" />PMID:28195122; <ref name=":57" />PMID:26323607; PMID:11958368; PMID:25965831; PMID:24536048; PMID:24722350 PMID:12568317; PMID:26771848; PMID:27012381; PMID:27480481; PMID:27624470; PMID:27624470 PMID:27458586; PMID:17225936

|<ref name=":24" />PMID:23528542; <ref name=":49" />PMID:27575681; <ref name=":50" />PMID:20015288 <ref name=":50" />PMID:21988727; <ref name=":51" />PMID19918127; <ref name=":52" />PMID:25347344 <ref name=":53" />PMID:23334667; <ref name=":54" />PMID:25963524; <ref name=":55" />PMID:26826201 <ref name=":56" />PMID:28195122; <ref name=":57" />PMID:26323607; <ref name=":58" />PMID:11958368; <ref name=":59" />PMID:25965831; <ref name=":60" />PMID:24536048; <ref name=":61" />PMID:24722350 <ref name=":62" />PMID:12568317; <ref name=":63" />PMID:26771848; <ref name=":64" />PMID:27012381; <ref name=":65" />PMID:27480481; <ref name=":66" />PMID:27624470; <ref name=":67" />PMID:27458586; <ref name=":68" />PMID:17225936

|-

|-

|'''EPENDYMOMA'''<br>

|'''EPENDYMOMA'''<br>

'''Fusion:''' RELA fusions, YAP1 fusions can correspond to anaplastic histology

'''Fusion:''' RELA fusions, YAP1 fusions can correspond to anaplastic histology

|Mostly intracranial tumors, rarely in spinal cord

|Mostly intracranial tumors, rarely in spinal cord

|<ref name=":16" />PMID: 25965575; PMID:27022130

|<ref name=":16" />PMID: 25965575; <ref>{{Cite journal|last=Wu|first=Jing|last2=Armstrong|first2=Terri S.|last3=Gilbert|first3=Mark R.|date=2016-07|title=Biology and management of ependymomas|url=https://pubmed.ncbi.nlm.nih.gov/27022130|journal=Neuro-Oncology|volume=18|issue=7|pages=902–913|doi=10.1093/neuonc/now016|issn=1523-5866|pmc=4896548|pmid=27022130}}</ref>PMID:27022130

|}

|}

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