Abstract:
:Differentiating oligodendroglioma from extraventricular neurocytoma by conventional light microscopy alone can present a diagnostic challenge. We report pathologic findings of an unusual spinal cord tumor from a 33-year-old male patient which showed hybrid features of oligodendroglioma and extraventricular neurocytoma. Magnetic resonance imaging (MRI) showed an enhancing intramedullary mass in the cervicothoracic region (C7 through T6). Histologic examination revealed a clear cell neoplasm containing ganglion-like cells and calcifications, prompting the differential diagnosis of oligodendroglioma and extraventricular neurocytoma. The immunohistochemical analysis disclosed neural differentiation of the neoplastic cells with strong synaptophysin and neurofilament staining consistent with extraventricular neurocytoma, as well as strong S-100 and glial fibrillary acidic protein (GFAP) expression. Molecular studies with fluorescent in situ hybridization (FISH) revealed chromosome 1p/(partial) 19q deletions, a finding commonly observed in oligodendroglioma. The proliferation index (using antibody MIB1) of the tumor was approximately 30%. The morphologic findings and these results strengthen the hypothesis that these tumors may share a common progenitor cell, which has also been observed by others. Because there are differences in patient management and long-term prognosis, it is important to attempt to distinguish between oligodendroglioma and neurocytoma. This unusual case and similar rare reported cases support the need to reclassify tumors showing pathologic features common to both neurocytoma and oligodendroglioma as a unique entity, while the effort continues to identify the cell of origin.
journal_name
J Neurooncoljournal_title
Journal of neuro-oncologyauthors
Makuria AT,Henderson FC,Rushing EJ,Hartmann DP,Azumi N,Ozdemirli Mdoi
10.1007/s11060-006-9268-0subject
Has Abstractpub_date
2007-04-01 00:00:00pages
199-205issue
2eissn
0167-594Xissn
1573-7373journal_volume
82pub_type
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pub_type: 杂志文章
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更新日期:2011-04-01 00:00:00
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journal_title:Journal of neuro-oncology
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更新日期:2017-01-01 00:00:00
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更新日期:2007-04-01 00:00:00
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doi:10.1007/s11060-014-1457-7
更新日期:2014-08-01 00:00:00
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journal_title:Journal of neuro-oncology
pub_type: 杂志文章,多中心研究
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更新日期:2014-01-01 00:00:00
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pub_type: 杂志文章
doi:10.1007/s11060-018-2843-3
更新日期:2018-08-01 00:00:00
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journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1007/BF01052846
更新日期:1995-01-01 00:00:00
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journal_title:Journal of neuro-oncology
pub_type: 杂志文章
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更新日期:2017-03-01 00:00:00
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journal_title:Journal of neuro-oncology
pub_type: 杂志文章
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更新日期:2002-04-01 00:00:00
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journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1023/a:1006436903976
更新日期:2000-08-01 00:00:00
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journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1007/s11060-017-2476-y
更新日期:2017-07-01 00:00:00
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pub_type: 杂志文章
doi:10.1007/s11060-020-03583-9
更新日期:2020-08-01 00:00:00
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journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1007/BF00182138
更新日期:1996-08-01 00:00:00
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pub_type: 杂志文章
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journal_title:Journal of neuro-oncology
pub_type: 临床试验,杂志文章
doi:10.1023/a:1014532202188
更新日期:2002-01-01 00:00:00
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pub_type: 杂志文章
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更新日期:2020-02-01 00:00:00
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journal_title:Journal of neuro-oncology
pub_type: 杂志文章,评审
doi:10.1023/b:neon.0000041882.41369.9b
更新日期:2004-08-01 00:00:00
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journal_title:Journal of neuro-oncology
pub_type: 杂志文章
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更新日期:2006-09-01 00:00:00
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journal_title:Journal of neuro-oncology
pub_type: 杂志文章,评审
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更新日期:2004-11-01 00:00:00
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journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1007/s11060-018-03043-5
更新日期:2019-01-01 00:00:00
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journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1007/s11060-011-0734-y
更新日期:2012-03-01 00:00:00
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更新日期:2020-05-01 00:00:00
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journal_title:Journal of neuro-oncology
pub_type: 杂志文章,评审
doi:10.1007/BF01053041
更新日期:1994-01-01 00:00:00
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journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1007/s11060-010-0501-5
更新日期:2011-08-01 00:00:00
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journal_title:Journal of neuro-oncology
pub_type: 杂志文章
doi:10.1023/b:neon.0000013488.52742.b4
更新日期:2004-01-01 00:00:00