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oligoastrocytoma

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A relatively slow-growing glioma that is derived from oligodendrocytes and tends to occur in the cerebral hemispheres, thalamus, or lateral ventricle. They may present at any age, but are most frequent in the third to fifth decades, with an earlier incidence peak in the first decade. Histologically, these tumors are encapsulated, relatively avascular, and tend to form cysts and microcalcifications. Neoplastic cells tend to have small round nuclei surrounded by unstained nuclei. The tumors may vary from well-differentiated to highly anaplastic forms. (From DeVita et al., Cancer: Principles and Practice of Oncology, 5th ed, p2052; Adams et al., Principles of Neurology, 6th ed, p655)

A WHO grade II tumor composed of a conspicuous mixture of two distinct neoplastic cell types morphologically resembling the tumor cells in oligodendroglioma and diffuse astrocytoma. (WHO)

Synonyms: Well Differentiated Oligodendroglioma, Mixed Astrocytic-Oligodendroglial Tumor, Oligodendroglioma-Ependymoma, Mixed, Mixed Oligodendroglioma-Ependymoma, Mixed Oligo-Astrocytoma, Mixed Astrocytic-Oligodendroglial Neoplasm, Mixed Oligodendroglioma Ependymoma, Oligodendroglioma-Astrocytomas, Mixed, Mixed Oligodendroglioma Astrocytoma, Oligodendroblastoma, Oligodendroglioma, Well-Differentiated, Oligodendrogliomas, Childhood, Mixed Oligodendroglioma-Astrocytoma, Oligodendroglioma-Astrocytoma, Mixed, Oligodendroglioma, Well Differentiated, Well-Differentiated Oligodendrogliomas, Mixed Astrocytoma-Oligodendroglioma, Adult Oligodendroglioma, Oligodendroglioma, Adult, Childhood Oligodendroglioma, oligoastroglioma, Well-Differentiated Oligodendroglioma, WELL DIFFER OLIGODENDROGLIOMA, Oligodendroglioma, Childhood, Mixed Oligodendroglioma-Astrocytomas, Adult Oligodendrogliomas, Mixed Oligodendroglioma-Ependymomas, OLIGODENDROGLIOMA WELL DIFFER, WHO Grade II Mixed Glioma, Oligodendrogliomas, Adult, Oligodendroglioma-Ependymomas, Mixed, Oligodendrogliomas, Well-Differentiated, Oligodendroblastomas, Childhood Oligodendrogliomas

Term info

DOID definition citation

DOID:7912, DOID:3186, DOID:3183

SNOMEDCT definition citation

SNOMEDCT:80061003

bioportal provenance

Mixed Oligodendroglioma-Astrocytomas[accessedResource: MSH:D009837][accessDate: 05-04-2011], Mixed Oligo-Astrocytoma[accessedResource: NCIt:C4050][accessDate: 05-04-2011], Oligodendrogliomas, Adult[accessedResource: MSH:D009837][accessDate: 05-04-2011], Well-Differentiated Oligodendroglioma[accessedResource: MSH:D009837][accessDate: 05-04-2011], Well-Differentiated Oligodendrogliomas[accessedResource: MSH:D009837][accessDate: 05-04-2011], Childhood Oligodendrogliomas[accessedResource: MSH:D009837][accessDate: 05-04-2011], Oligodendroglioma-Astrocytoma, Mixed[accessedResource: MSH:D009837][accessDate: 05-04-2011], Oligodendroglioma-Ependymoma, Mixed[accessedResource: MSH:D009837][accessDate: 05-04-2011], Oligodendroglioma, Adult[accessedResource: MSH:D009837][accessDate: 05-04-2011], Oligodendrogliomas, Well-Differentiated[accessedResource: MSH:D009837][accessDate: 05-04-2011], Oligodendroglioma[accessedResource: MSH:D009837][accessDate: 05-04-2011], Oligodendroglioma, Well Differentiated[accessedResource: MSH:D009837][accessDate: 05-04-2011], Adult Oligodendroglioma[accessedResource: MSH:D009837][accessDate: 05-04-2011], Well Differentiated Oligodendroglioma[accessedResource: MSH:D009837][accessDate: 05-04-2011], Mixed Oligodendroglioma Ependymoma[accessedResource: MSH:D009837][accessDate: 05-04-2011], Mixed Astrocytoma-Oligodendroglioma[accessedResource: NCIt:C4050][accessDate: 05-04-2011], OLIGODENDROGLIOMA WELL DIFFER[accessedResource: MSH:D009837][accessDate: 05-04-2011], Oligodendrogliomas, Childhood[accessedResource: MSH:D009837][accessDate: 05-04-2011], Oligodendroglioma-Astrocytomas, Mixed[accessedResource: MSH:D009837][accessDate: 05-04-2011], Mixed Oligodendroglioma-Ependymomas[accessedResource: MSH:D009837][accessDate: 05-04-2011], Mixed Oligodendroglioma Astrocytoma[accessedResource: MSH:D009837][accessDate: 05-04-2011], WELL DIFFER OLIGODENDROGLIOMA[accessedResource: MSH:D009837][accessDate: 05-04-2011], Adult Oligodendrogliomas[accessedResource: MSH:D009837][accessDate: 05-04-2011], Childhood Oligodendroglioma[accessedResource: MSH:D009837][accessDate: 05-04-2011], Oligodendrogliomas, Anaplastic[accessedResource: MSH:D009837][accessDate: 05-04-2011], A relatively slow-growing glioma that is derived from oligodendrocytes and tends to occur in the cerebral hemispheres, thalamus, or lateral ventricle. They may present at any age, but are most frequent in the third to fifth decades, with an earlier incidence peak in the first decade. Histologically, these tumors are encapsulated, relatively avascular, and tend to form cysts and microcalcifications. Neoplastic cells tend to have small round nuclei surrounded by unstained nuclei. The tumors may vary from well-differentiated to highly anaplastic forms. (From DeVita et al., Cancer: Principles and Practice of Oncology, 5th ed, p2052; Adams et al., Principles of Neurology, 6th ed, p655)[accessedResource: MSH:D009837][accessDate: 05-04-2011], Oligodendroblastomas[accessedResource: MSH:D009837][accessDate: 05-04-2011], Oligodendroglioma, Childhood[accessedResource: MSH:D009837][accessDate: 05-04-2011], Oligodendroglioma, Well-Differentiated[accessedResource: MSH:D009837][accessDate: 05-04-2011], Mixed Oligodendroglioma-Ependymoma[accessedResource: MSH:D009837][accessDate: 05-04-2011], WHO Grade II Mixed Glioma[accessedResource: NCIt:C4050][accessDate: 05-04-2011], Mixed Astrocytic-Oligodendroglial Neoplasm[accessedResource: NCIt:C4050][accessDate: 05-04-2011], Oligodendroglioma-Ependymomas, Mixed[accessedResource: MSH:D009837][accessDate: 05-04-2011], Anaplastic Oligodendroglioma[accessedResource: MSH:D009837][accessDate: 05-04-2011], A WHO grade II tumor composed of a conspicuous mixture of two distinct neoplastic cell types morphologically resembling the tumor cells in oligodendroglioma and diffuse astrocytoma. (WHO)[accessedResource: NCIt:C4050][accessDate: 05-04-2011], Mixed Astrocytic-Oligodendroglial Tumor[accessedResource: NCIt:C4050][accessDate: 05-04-2011], Anaplastic Oligodendrogliomas[accessedResource: MSH:D009837][accessDate: 05-04-2011], Oligodendrogliomas[accessedResource: MSH:D009837][accessDate: 05-04-2011], Oligodendroblastoma[accessedResource: MSH:D009837][accessDate: 05-04-2011], Mixed Oligodendroglioma-Astrocytoma[accessedResource: MSH:D009837][accessDate: 05-04-2011], Oligodendroglioma, Anaplastic[accessedResource: MSH:D009837][accessDate: 05-04-2011]

term editor

James Malone

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