Definition of oligodendroglioma in English:
oligodendroglioma
nounPlural oligodendrogliomas, Plural oligodendrogliomata ˌɒlɪɡə(ʊ)ˌdɛndrə(ʊ)ɡlɪˈəʊmə
Medicine A tumour derived from oligodendroglia.
Example sentencesExamples
- Loss of p16 gene expression and protein down-regulation have been disclosed in various human gliomas, including oligodendrogliomas.
- Touch preparations are recommended for pituitary adenomas, oligodendrogliomas, and lymphomas.
- Survivin staining was also found in the nuclei of endothelial cells of blood vessels, including delicate arcuate vessels of oligodendrogliomas and in vessels with microvascular proliferation found in GBMs.
- Moreover, the data suggest that p27 down-regulation is an important event in malignant transformation of oligodendrogliomas.
- It seems unlikely that p21 immunohistochemistry will be of value for determining clinical outcomes for patients with oligodendrogliomas.
- Moreover, the extent of dissemination in GC far exceeds that of an infiltrating glioma and oligodendroglioma.
- Small undifferentiated cells with hyperchromatic nuclei were also seen, and in some areas the tumor cells displayed relatively uniform round nuclei resembling those of an oligodendroglioma.
- No areas with histologic features of neurocytoma, oligodendroglioma, or other mature neuroectodermal component were identified.
- Results.-Of the 12 oligodendrogliomas, 6 of 10 informative cases for 1p exhibited loss of heterozygosity.
- In summary, we came to the following conclusions: p18 protein expression is closely associated with highgrade oligodendrogliomas and worse outcome.
- In contrast to neurocytomas, oligodendrogliomas do not demonstrate any features of neuronal differentiation, either by immunohistochemistry or electron microscopy.
- This is currently being done in a variety of tumors, most notably the subgroup called oligodendroglioma.
- In a series of 285 supratentorial anaplastic gliomas in adults, 10 tumors were classified as anaplastic oligodendrogliomas.
- The present study, which uses specific PCR analysis of alleles on key chromosomes implicated in the pathogenesis of most oligodendrogliomas, confirms and extends these findings.
- Histologically, the cellular pattern of the tumor closely resembles that of the oligodendroglioma.
- In 12 reoperated tumors, pathologic examination revealed progression toward an anaplastic oligodendroglioma, whereas the remaining 7 exhibited the same histology found in the primary tumor.
- Of the 14 anaplastic oligoastrocytomas, 6 were designated astrocytoma predominant and 2 were oligodendroglioma predominant.
- Diagnosed 18 years ago with an oligodendroglioma in the front lobe area behind her forehead, she was given four years to live.
- We have excluded tumors within the oligodendroglioma category or tumors that may have oligodendroglial components from our study.
- By light microscopy, all 117 tumors examined presented the histopathologic appearance typical for pure oligodendrogliomas.