Source:http://linkedlifedata.com/resource/pubmed/id/15343519
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
9
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pubmed:dateCreated |
2004-9-2
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pubmed:abstractText |
An insular cortex tumor in a 54-year-old woman showed unequivocal neurocytic features, including open nuclei, distinct nucleoli, and strong synaptophysin immunoreactivity. Ultrastructurally, there were neuritic-type processes with microtubules and hillock-like attachments, and there were dense-core granules. Atypical features were mitotic activity, prominent vasculature, and small foci of necrosis. Peripherally, there was oligodendroglia-like histology with single-cell infiltration of white matter and perineuronal spread in cortex. Fluorescence in situ hybridization analysis with chromosome 1 and 19 probes showed 3 copies of 1q and 2 copies of 1p and showed 2 copies of 19q and 4 copies of 19p. This yielded a 1p-19q loss of heterozygosity pattern similar to that seen in oligodendrogliomas, although the actual chromosomal abnormality is distinct. This tumor, best classified as an atypical neurocytoma with oligodendroglia-like spread, supports suggestions of a close histogenic relationship between oligodendroglial and neurocytic tumors. This case also illustrates the limitations of relying exclusively on loss of heterozygosity analysis for tumor classification.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:status |
MEDLINE
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pubmed:month |
Sep
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pubmed:issn |
0046-8177
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
35
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1156-9
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pubmed:dateRevised |
2005-2-16
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pubmed:meshHeading |
pubmed-meshheading:15343519-Brain Neoplasms,
pubmed-meshheading:15343519-Chromosomes, Human, Pair 1,
pubmed-meshheading:15343519-Chromosomes, Human, Pair 19,
pubmed-meshheading:15343519-Diagnosis, Differential,
pubmed-meshheading:15343519-Female,
pubmed-meshheading:15343519-Gene Dosage,
pubmed-meshheading:15343519-Humans,
pubmed-meshheading:15343519-Immunohistochemistry,
pubmed-meshheading:15343519-In Situ Hybridization, Fluorescence,
pubmed-meshheading:15343519-Loss of Heterozygosity,
pubmed-meshheading:15343519-Microscopy, Electron,
pubmed-meshheading:15343519-Middle Aged,
pubmed-meshheading:15343519-Neurocytoma,
pubmed-meshheading:15343519-Oligodendroglioma
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pubmed:year |
2004
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pubmed:articleTitle |
Atypical extraventricular neurocytoma with oligodendroglioma-like spread and an unusual pattern of chromosome 1p and 19q loss.
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pubmed:affiliation |
Department of Pathology, University of Arkansas for Medical Sciences, Littlle Rock, AR 72205, USA.
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pubmed:publicationType |
Journal Article,
Case Reports
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