Oligodendroglioma CT
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Oligodendroglioma Microchapters |
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Oligodendroglioma CT On the Web |
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American Roentgen Ray Society Images of Oligodendroglioma CT |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Associate Editor(s)-in-Chief: Sara Mohsin, M.D.[2]Sujit Routray, M.D. [3]
Overview
Head CT scan may be helpful in the diagnosis of oligodendroglioma. Findings on CT scan suggestive of oligodendroglioma are round or oval, marginated, hypo- to isodense mass with hemorrhage, calcification, and ill-defined enhancement following intravenous contrast administration.
CT
- Head CT scan may be helpful in the diagnosis of oligodendroglioma
- Findings on CT scan suggestive of oligodendroglioma are listed below:[1][2][3][4][5]
- Round or oval, sharply marginated mass involving the cortex or subcortical white matter
- Hypodense to isodense mass
- Hemorrhage
- Overlying skull may show pressure erosion
- Calcification (70-90%)
- Located centrally or peripherally
- May be ribbon-like
- Ill-defined enhancement (50%) following intravenous contrast administration
- Marked ventricular enlargement suggestive of hydrocephalus
Gallery
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![Heterogeneous region of contrast enhancement, edema, and mass effect is present in the left frontal lobe.[3]](/images/1/19/Oligoastrocytoma_contrast_CT.jpg)
Heterogeneous region of contrast enhancement, edema, and mass effect is present in the left frontal lobe.[3] -
![Right temporal hypodense space occupying lesion which contains internal central calcifications.[4]](/images/e/e1/Oligodendroglioma_axial_noncontrast_CT.jpg)
Right temporal hypodense space occupying lesion which contains internal central calcifications.[4] -
![Oligodendroglioma that is highly calcified.[5]](/images/b/bc/CT_oligodendroglioma_calcification.jpg)
Oligodendroglioma that is highly calcified.[5]
![Heterogeneous region of contrast enhancement, edema, and mass effect is present in the left frontal lobe.[3]](/index.php/File:Oligoastrocytoma_contrast_CT.jpg)
![Right temporal hypodense space occupying lesion which contains internal central calcifications.[4]](/index.php/File:Oligodendroglioma_axial_noncontrast_CT.jpg)
![Oligodendroglioma that is highly calcified.[5]](/index.php/File:CT_oligodendroglioma_calcification.jpg)
References
- ↑ Radiographic features of oligodendroglioma. Dr Henry Knipe and Dr Frank Gaillard et al. http://radiopaedia.org/articles/oligodendroglioma
- ↑ Stark AM, Hugo HH, Mehdorn HM, Knerlich-Lukoschus F (2009). "Acute Hydrocephalus due to Secondary Leptomeningeal Dissemination of an Anaplastic Oligodendroglioma". Case Rep Med. 2009: 370901. doi:10.1155/2009/370901. PMC 2797365. PMID 20052406.
- ↑ 3.0 3.1 Image courtesy of Dr. Frank Gaillard. Radiopaedia (original file here). Creative Commons BY-SA-NC
- ↑ 4.0 4.1 Image courtesy of Dr. Henry Knipe and Dr Frank Gaillard et al.. Radiopaedia (original file here). Creative Commons BY-SA-NC
- ↑ 5.0 5.1 Oligodendrogliomas. SurgWiki 2015. http://www.surgwiki.com/wiki/Intracranial_tumours,_infection_and_aneurysms#Oligodendroglioma