Glioma CT

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor-In-Chief: Cafer Zorkun, M.D., Ph.D. [2], Sujit Routray, M.D. [3]

Overview

Head CT scan may be diagnostic of glioma.

CT

Head CT scan may be diagnostic of glioma.

Type of glioma	Gross pathological features
Pilocytic astrocytoma	1. Large cystic component with a brightly enhancing mural nodule (67%) Non enhancing cyst wall (21%) Enhancing cyst wall (46%) 2. Heterogeneous, mixed solid and multiple cysts and central necrosis (16%) 3. Completely solid (17%)
Low-grade astrocytoma	1. Isodense or hypodense 2. Positive mass effect 3. No enhancement 4. Calcification is rare
Anaplastic astrocytoma	1. Variable enhancement 2. Regions of low attenuation 3. Positive mass effect
Glioblastoma multiforme	1. Poorly-marginated, diffusely infiltrating tumor 2. Firm or gelatinous in consistency 3. Central necrotic core 4. Commonly located in the frontal and temporal lobe
Oligodendroglioma	1. Well circumscribed tumor 2. Pinkish-white in color 3. Mucinous changes 4. Commonly located in the frontal lobe, followed by parietal and temporal lobes
Ependymoma	1. Well-differentiated tumor 2. Exophytic pattern of growth 3. Commonly located at the fourth ventricle and filum terminale

Image courtesy of Professor Peter Anderson DVM PhD and published with permission © PEIR, University of Alabama at Birmingham, Department of Pathology

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  BRAIN: GLIOMA, OPTICOCHIASMATIC; WITH CONTRAST
• 
  BRAIN: GLIOMA, OPTICOCHIASMATIC; 1 OF 4 WITHOUT CONTRAST
• 
  BRAIN: GLIOMA, OPTICOCHIASMATIC; 2 OF 4 WITH CONTRAST

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  BRAIN: GLIOMA, OPTICOCHIASMATIC; 3 OF 4 WITH CONTRAST
• 
  BRAIN: GLIOMA, OPTICOCHIASMATIC; 4 OF 4 WITH CONTRAST

References

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