Oligodendroglioma CT: Difference between revisions

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Revision as of 06:22, 18 May 2019

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [2]Associate Editor(s)-in-Chief: Sara Mohsin, M.D.[3]Sujit Routray, M.D. [4]

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, ribbon-like calcification, ill-defined enhancement following intravenous contrast administration, pressure erosion/remodelling of overlying skull, and marked ventricular enlargement suggestive of hydrocephalus.

Oligodendroglioma CT characteristics
CT type	Tumor characteristics on CT
Non-contrast CT	Tumors are of mixed density i.e. from hypodense to isodense High-attenuation areas within the tumor are due to: Calcification most likely(70-90% of oligodendrogliomas are calcified), which can be located centrally, peripherally or they can be ribbon-like Hemorrhage (less commonly) Overlying skull may show pressure remodelling
Post-contrast CT	Approximately 50% of oligodendrogliomas enhance with degree of enhancement being extremely variable, ranging from: No enhancement to Strikingly vivid enhancement

↑ 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.
↑ Image courtesy of Dr. Frank Gaillard. Radiopaedia (original file here). Creative Commons BY-SA-NC
↑ Image courtesy of Dr. Henry Knipe and Dr Frank Gaillard et al.. Radiopaedia (original file here). Creative Commons BY-SA-NC
↑ Oligodendrogliomas. SurgWiki 2015. http://www.surgwiki.com/wiki/Intracranial_tumours,_infection_and_aneurysms#Oligodendroglioma

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 ==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]], ribbon-like [[calcification]], ill-defined enhancement following intravenous contrast administration, pressure erosion/remodelling of overlying skull, and marked ventricular enlargement suggestive of [[hydrocephalus]].
+[[Head]] [[CT scan]] may be helpful in the [[diagnosis]] of [[oligodendroglioma]]. Findings on [[Computed tomography|CT scan]] [[Suggestion|suggestive]] of [[oligodendroglioma]] are round or [[oval]], marginated, hypo- to isodense [[mass]] with [[hemorrhage]], ribbon-like [[calcification]], ill-defined enhancement following [[intravenous]] [[contrast]] administration, [[pressure]] [[Erosion (dental)|erosion]]/remodelling of overlying [[skull]], and marked [[ventricular]] enlargement [[Suggestion|suggestive]] of [[hydrocephalus]].
 ==CT==