Mixed gliomas: Difference between revisions
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Revision as of 18:11, 12 December 2011
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WikiDoc Resources for Mixed gliomas |
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Most recent articles on Mixed gliomas Most cited articles on Mixed gliomas |
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Powerpoint slides on Mixed gliomas |
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Evidence Based Medicine |
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Clinical Trials |
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Ongoing Trials on Mixed gliomas at Clinical Trials.gov Trial results on Mixed gliomas Clinical Trials on Mixed gliomas at Google
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US National Guidelines Clearinghouse on Mixed gliomas NICE Guidance on Mixed gliomas
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Definitions |
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Patient Resources / Community |
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Patient resources on Mixed gliomas Discussion groups on Mixed gliomas Patient Handouts on Mixed gliomas Directions to Hospitals Treating Mixed gliomas Risk calculators and risk factors for Mixed gliomas
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Healthcare Provider Resources |
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Causes & Risk Factors for Mixed gliomas |
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Continuing Medical Education (CME) |
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
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Overview
Oligoastrocytomas are a subset of brain tumor that present with an appearance of mixed glial cell origin, astrocytoma and oligodendroglioma. Often called a "mixed glioma", about 2.3% of all reported brain tumors are diagnosed as oligoastrocytoma. The median age of diagnosis is 42 years of age.
Oligoastrocytomas, like astrocytomas and oligodendrogliomas, can have malignant (anaplastic) histology. However, lower grades can have less aggressive biology.
Symptoms
There are many possible symptoms of oligodendrogliomas that are similar to other gliomas. These symptoms may include headache, seizure and speech or motor changes.
Diagnosis
A Computed Tomography (CT) or Magnetic Resonance Imaging (MRI) scan is necessary to characterize the anatomy of this tumor (size, location, heter/homogeneity). However, final diagnosis of this tumor, like most tumors, relies on histopathologic examination (biopsy examination).
Treatment
If resected, the surgeon will remove as much of this tumor as possible, without disturbing eloquent regions of the brain (speech/motor cortex) and other critical brain structure. Thereafter, treatment may include chemotherapy and radiation therapy of doses and types ranging based upon the patient's needs. Subsequent MRI examination are often necessary to monitor the resection cavity.
Prognosis
Even after surgery, an oligoastrocytoma will often recur. The treatment for a recurring brain tumor may include surgical resection, chemo and radiation therapy. Survival time of this brain tumor varies - younger age and low-grade initial diagnosis are factors in improved survival time.
External links
Template:Nervous tissue tumors
Template:SIB
Acknowledgements
The content on this page was first contributed by: C. Michael Gibson, M.S., M.D.