Glioma CT: Difference between revisions

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[[Pilocytic astrocytoma]]
[[Pilocytic astrocytoma]]
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:1. Large cystic component with a brightly enhancing mural nodule (67%)
:1. Large [[cystic]] component with a brightly enhancing mural nodule (67%)
:* Non enhancing cyst wall (21%)
:* Non enhancing cyst wall (21%)
:* Enhancing cyst wall (46%)
:* Enhancing cyst wall (46%)
:2. Heterogeneous, mixed solid and multiple cysts and central necrosis (16%)
:2. Heterogeneous, mixed solid and multiple cysts and central [[necrosis]] (16%)
:3. Completely solid (17%)
:3. Completely solid (17%)
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|-
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:2. Positive mass effect
:2. Positive mass effect
:3. No enhancement  
:3. No enhancement  
:4. Calcification is rare
:4. [[Calcification]] is rare
:5. Cystic component
:5. Cystic component
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|-
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:3. Marked mass effect
:3. Marked mass effect
:4. Surrounding vasogenic [[edema]]
:4. Surrounding vasogenic [[edema]]
:5. Hemorrhage
:5. [[Hemorrhage]]
:6. Calcification is rare
:6. [[Calcification]] is rare
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:1. Hypodense to isodense
:1. Hypodense to isodense
:2. Calcification (70-90%)
:2. [[Calcification]] (70-90%)
:3. Hemorrhage
:3. [[Hemorrhage]]
:4. Overlying skull may show pressure erosion
:4. Overlying skull may show pressure erosion
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[[Ependymoma]]
[[Ependymoma]]
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:1. Coarse calcification is common (50%)
:1. Coarse [[calcification]] is common (50%)
:2. Cystic areas (50%)
:2. Cystic areas (50%)
:3. Iso- to hypodense solid component
:3. Iso- to hypodense solid component
:4. Heterogeneous enhancement
:4. Heterogeneous enhancement
:5. Hemorrhage
:5. [[Hemorrhage]]
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Revision as of 18:32, 22 September 2015

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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.[1][2][3][4][5][6]

Type of glioma CT findings

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
5. Cystic component

Anaplastic astrocytoma

1. Variable enhancement
2. Regions of low attenuation
3. Positive mass effect

Glioblastoma multiforme

1. Irregular thick margins: iso- to slightly hyperattenuating (high cellularity)
2. Irregular hypodense centre representing necrosis
3. Marked mass effect
4. Surrounding vasogenic edema
5. Hemorrhage
6. Calcification is rare

Oligodendroglioma

1. Hypodense to isodense
2. Calcification (70-90%)
3. Hemorrhage
4. Overlying skull may show pressure erosion

Ependymoma

1. Coarse calcification is common (50%)
2. Cystic areas (50%)
3. Iso- to hypodense solid component
4. Heterogeneous enhancement
5. Hemorrhage










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

  • BRAIN: GLIOMA, OPTICOCHIASMATIC; WITH CONTRAST

    BRAIN: GLIOMA, OPTICOCHIASMATIC; WITH CONTRAST

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

    BRAIN: GLIOMA, OPTICOCHIASMATIC; 1 OF 4 WITHOUT CONTRAST

  • BRAIN: GLIOMA, OPTICOCHIASMATIC; 2 OF 4 WITH CONTRAST

    BRAIN: GLIOMA, OPTICOCHIASMATIC; 2 OF 4 WITH CONTRAST


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

    BRAIN: GLIOMA, OPTICOCHIASMATIC; 3 OF 4 WITH CONTRAST

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

    BRAIN: GLIOMA, OPTICOCHIASMATIC; 4 OF 4 WITH CONTRAST

References

  1. ↑ Radiological findings of pilocytic astrocytoma. Radiopaedia.org 2015. http://radiopaedia.org/articles/pilocytic-astrocytoma
  2. ↑ Radiological findings of low grade infiltrative astrocytoma. http://radiopaedia.org/articles/low-grade-infiltrative-astrocytoma
  3. ↑ Radiological findings of anaplastic astrocytoma. http://radiopaedia.org/articles/anaplastic-astrocytoma
  4. ↑ Radiological findings of glioblastoma. http://radiopaedia.org/articles/glioblastoma
  5. ↑ Radiological findings of oligodendroglioma. http://radiopaedia.org/articles/oligodendroglioma
  6. ↑ Radiological findings of ependymoma. Radiopaedia.org 2015. http://radiopaedia.org/articles/ependymoma


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