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{{Oligoastrocytoma}}
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'''For patient information click [[{{PAGENAME}} (patient information)|here]]'''.
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==Overview==
{{SK}} Oligoastrocytomas; mixed glioma; mixed gliomas; OA; OAC; anaplastic oligoastrocytoma; glioma; brain tumor


Oligoastrocytomas are a subset of [[brain tumor]] that present with an appearance of mixed glial cell origin, [[astrocytoma]] and [[oligodendroglioma]].
==[[Oligoastrocytoma overview|Overview]]==


==Pathophysiology==
==[[Oligoastrocytoma historical perspective|Historical Perspective]]==


Oligoastrocytomas, like [[astrocytomas]] and oligodendrogliomas, can have malignant ([[anaplastic]]) histology. However, lower grades can have less aggressive biology.
==[[Oligoastrocytoma classification|Classification]]==


==Epidemiology and Demographics==
==[[Oligoastrocytoma pathophysiology|Pathophysiology]]==


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.
==[[Oligoastrocytoma causes|Causes]]==


==Natural History, Complications and Prognosis==
==[[Oligoastrocytoma differential diagnosis|Differentiating Oligoastrocytoma from other Diseases]]==


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.
==[[Oligoastrocytoma epidemiology and demographics|Epidemiology and Demographics]]==


==Symptoms==
==[[Oligoastrocytoma risk factors|Risk Factors]]==


There are many possible symptoms of oligodendrogliomas that are similar to other [[glioma]]s. These symptoms may include [[headache]], [[seizure]] and speech or motor changes.
==[[Oligoastrocytoma screening|Screening]]==
 
==[[Oligoastrocytoma natural history, complications and prognosis|Natural History, Complications and Prognosis]]==


==Diagnosis==
==Diagnosis==
[[Oligoastrocytoma staging|Staging]] | [[Oligoastrocytoma history and symptoms|History and Symptoms]] | [[Oligoastrocytoma physical examination|Physical Examination]] | [[Oligoastrocytoma laboratory tests|Laboratory Findings]] | [[Oligoastrocytoma chest x ray|Chest X Ray]] | [[Oligoastrocytoma CT|CT]] | [[Oligoastrocytoma MRI|MRI]] | [[Oligoastrocytoma ultrasound|Ultrasound]] | [[Oligoastrocytoma other imaging findings|Other Imaging Findings]] | [[Oligoastrocytoma other diagnostic studies|Other Diagnostic Studies]]


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==
[[Oligoastrocytoma medical therapy|Medical Therapy]] | [[Oligoastrocytoma surgery|Surgery]] | [[Oligoastrocytoma primary prevention|Primary Prevention]] | [[Oligoastrocytoma secondary prevention|Secondary Prevention]] | [[Oligoastrocytoma cost-effectiveness of therapy|Cost-Effectiveness of Therapy]] | [[Oligoastrocytoma future or investigational therapies|Future or Investigational Therapies]]


==Treatment==
==Case Studies==
[[Oligoastrocytoma case study one|Case#1]]


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.
==Related chapters==
* [[Brain tumor]]
* [[Brain Stem Gliomas]]
* [[Glioma]]
* [[Astrocytoma]]
* [[Ependymomas]]
* [[Oligodendrogliomas]]
* [[Glioblastoma multiforme]]
* [[Mixed gliomas]]


==External links==
{{Tumors}}
* [http://rad.usuhs.mil/medpix/radpix.html?mode=single&recnum=1066&th=-1 Images]
{{Epithelial neoplasms}}
{{Nervous tissue tumors}}
{{Nervous tissue tumors}}


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Latest revision as of 14:42, 27 November 2017

Oligoastrocytoma Microchapters

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Overview

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Associate Editor(s)-in-Chief: Sujit Routray, M.D. [2]

Synonyms and keywords: Oligoastrocytomas; mixed glioma; mixed gliomas; OA; OAC; anaplastic oligoastrocytoma; glioma; brain tumor

Overview

Historical Perspective

Classification

Pathophysiology

Causes

Differentiating Oligoastrocytoma from other Diseases

Epidemiology and Demographics

Risk Factors

Screening

Natural History, Complications and Prognosis

Diagnosis

Staging | History and Symptoms | Physical Examination | Laboratory Findings | Chest X Ray | CT | MRI | Ultrasound | Other Imaging Findings | Other Diagnostic Studies

Treatment

Medical Therapy | Surgery | Primary Prevention | Secondary Prevention | Cost-Effectiveness of Therapy | Future or Investigational Therapies

Case Studies

Case#1

Related chapters

Template:Tumors Template:Epithelial neoplasms Template:Nervous tissue tumors


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